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Publication numberUS20030217142 A1
Publication typeApplication
Application numberUS 10/145,912
Publication dateNov 20, 2003
Filing dateMay 15, 2002
Priority dateMay 15, 2002
Also published asUS7493390, US20060190591
Publication number10145912, 145912, US 2003/0217142 A1, US 2003/217142 A1, US 20030217142 A1, US 20030217142A1, US 2003217142 A1, US 2003217142A1, US-A1-20030217142, US-A1-2003217142, US2003/0217142A1, US2003/217142A1, US20030217142 A1, US20030217142A1, US2003217142 A1, US2003217142A1
InventorsNikhil Bobde, Robert Brown, Jeremy Buch, Vishwajith Kumbalimutt, David Simons, Zachary Taylor
Original AssigneeMicrosoft Corporation
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Method and system for supporting the communication of presence information regarding one or more telephony devices
US 20030217142 A1
Abstract
A system for detecting and communicating the presence of one or more computing devices is presented. The invention also presents a method and system for aggregating presence information generated by multiple devices associated with a single user. A server acting as a presence agent on behalf of a first user receives and responds to a subscription request generated by a computing device operated by a second user that wishes to be permitted as a watcher of the first user. When the second user corresponds to access preferences specified by the first user, a notify message is sent to the second user's device that includes presence information indicative of an activity level and availability level associated with the first user. When the first user employs multiple computing devices, the server generates an aggregate presence document that is representative of the overall presence of the first user.
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Claims(42)
We claim:
1. A method for enabling the activity and availability of a first computing device on a network to be monitored by a second computing device on the network, the activity representing how active the first computing device is on the network, the availability representing whether or not the first device is available to engage in network telephony with the second device, the method comprising:
receiving from the first computing device one or more access preferences indicating which computing devices are permitted to monitor the first computing device;
receiving from the second computing device a request to monitor the first computing device, the request being acknowledged regardless of the first computing device's availability or activity; and
based on the one or more access preferences, and based on the monitored activity and availability of the first computing device, informing the second computing device of the availability and activity of the first computing device.
2. The method of claim 1 further comprising:
storing information obtained from the request message submitted by the second computing device; and
submitting the stored information to the first computing device in response to a request message from the first computing device to obtain the stored information.
3. The method of claim 2 wherein the first computing device determines whether to grant the second computing device access to the presence information.
4. The method of claim 1 further comprising receiving and processing one or more procedure calls for initiating the transfer of presence information to a server.
5. The method of claim 4 wherein the one or more procedure calls correspond to one or more presence documents indicating the activity and availability of the first computing device.
6. The method of claim 4 wherein the step of processing includes determining at least one of the one or more presence documents that indicates a high presence priority setting, the presence priority setting being indicative of the at least one presence document that best reflects the presence of the first computing device.
7. The method of claim 1 wherein the step of receiving includes processing the one or more procedure calls for initiating the transfer of the one or more access preferences.
8. The method of claim 1 further comprising the step of aggregating one or more presence documents received from the first computing device into a single presence document, the single presence document indicating the activity and availability associated with at least one presence document that indicates a high presence priority setting, the single presence document also including presence data associated with the one or more presence documents.
9. A computer-readable medium having computer-executable instructions for performing the steps recited in claim 1.
10. A system for conveying presence information about a first user to a second user, the first user having a plurality of computing devices that are capable of generating presence information, the second user having a computing device in communication with a computer network, the system comprising:
one or more servers in communication with the computer network and executing programs comprising:
a presence agent;
an aggregator component; and
computer-readable media accessible by the one or more servers and having stored thereon information regarding the second user's desire to monitor the presence of the first user,
wherein the presence agent detects which of the plurality of computing devices indicates the highest degree of presence upon the network,
wherein the aggregator component generates an aggregate document representing the degree to which the plurality of computing devices is present upon the network, and
wherein the one or more servers transmit the aggregate presence document to the second user's computing device based on information stored in the computer readable media.
11. The system of claim 10 wherein the one or more servers execute a registration service for maintaining registration entries associated with the plurality of computing devices.
12. The system of claim 10 wherein the computer readable media has stored thereon an access control list that is accessible by the presence agent to maintain access preferences of the first user regarding the plurality of computing devices.
13. The system of claim 12 wherein the access control list maintains access preferences set by a network administrator, the access preferences of the network administrator having a higher priority than the access preferences of the first user.
14. The system of claim 10 wherein the presence agent processes one or more subscription messages received from the second user's computing device, the messages indicating the second user's desire to monitor the presence of the first user over the computer network.
15. The system of claim 10 wherein the presence agent processes one or more service messages, the service messages specifying one or more procedure calls for updating the presence information maintained by the presence agent regarding the plurality of computing devices.
16. The system of claim 10 wherein the presence agent processes one or more service messages comprising one or more procedure calls for updating the access control list.
17. The system of claim 10 wherein the presence agent transmits an acceptance message and a notify message to the second device in response to the one or more subscription requests submitted by the second device.
18. The system of claim 10 wherein the computer-readable media is accessed by the presence agent in response to a request submitted to the presence agent for the information regarding the second user's desire to monitor the presence of the first user, the request being submitted by at least one of the plurality of computing devices.
19. The system of claim 10 wherein the aggregator component submits the aggregate document to the presence agent in response to one or more service messages received by the presence agent from the plurality of computing devices.
20 A method for generating an aggregate presence document representing the overall presence of a user, the method comprising:
receiving a plurality of presence documents generated by a plurality of computing devices of the user, the presence documents including data representative of an activity level and availability level associated with each of the plurality of computing devices;
analyzing the plurality of presence documents to identify at least one presence document that has a high presence priority setting; and
generating the aggregate presence document based on the activity level and availability level associated with presence document having the high presence priority setting.
21. The method of claim 20 wherein the step of receiving includes processing one or more service messages associated with the plurality of presence documents.
22. The method of claim 21 wherein the service messages specify one or more procedure calls for updating the presence information regarding the plurality of computing devices.
23. The method of claim 20 wherein the step of receiving includes processing one or more messages for initiating or terminating the registration of one or more of the plurality of computing devices.
24. The method of claim 20 wherein the step of analyzing includes summing an availability level and an activity level specified by the at least one presence document, the resulting sum indicating the degree to which the user is present upon the network.
25. The method of claim 20 wherein the step of generating includes creating a plain-language description associated with the availability level and including the plain-language description in the aggregate document.
26. The method of claim 20 wherein the step of generating includes creating a plain-language description in associated with the availability level and including the plain-language description in the aggregate document.
27. The method of claim 20 wherein the user is a first user, the method comprising: transmitting the aggregate presence document to a computing device of a second user in response to changes in the presence information.
28. A computer-readable medium having computer-executable instructions for performing the steps recited in claim 20.
29. A method for generating an aggregate presence document based on presence information generated by one or more computing devices, the aggregate presence document specifying the overall presence of the one or more computing devices, the method comprising:
receiving a service message generated by at least one of the computing devices, the service message including one or more presence documents and one or more procedure calls for initiating the transfer of presence information to the presence agent, the presence information including data representative of an activity level and availability level associated with each of the one or more computing devices;
analyzing the plurality of presence documents to identify at least one of the presence documents that has a highest presence priority; and
generating the aggregate presence document by including data representative of an activity level and availability level associated with the at least one presence document that has the highest presence priority, the aggregate document also including other presence data obtained from the plurality of presence documents.
30. The method of claim 29 wherein the step of analyzing includes summing an availability level and an activity level specified by the at least one presence document, the resulting sum indicating the presence priority of the at least one presence document.
31. The method of claim 29 wherein the step of generating includes specifying a description attribute in association with the availability level, the description attribute providing a functional description of the availability level.
32. The method of claim 29 wherein the step of generating includes specifying a description attribute in association with the activity level, the description attribute providing a functional description of the activity level.
33. The method of claim 29 further including the step of submitting the aggregate presence document to one or more computing devices having access to the presence information associated with the plurality of computing devices in response to changes in the presence information.
34. A computer-readable medium having computer-executable instructions for performing the steps recited in claim 29.
35. A system for communicating presence information related to a first computing device to a second computing device over a network by a presence agent, the presence agent communicating the presence information in response to a request message submitted by the second computing device, the request message requesting access by the second computing device to the presence information, the system comprising:
means for receiving from the first computing device a message having one or more procedure calls for initiating the transfer of presence information to the presence agent;
means for receiving from the first computing device a message having one or more procedure calls for initiating the transfer of access preferences associated with the first computing device to the presence agent;
means for submitting an acceptance message to the second computing device indicating that the second computing device can access the presence information, the acceptance message being submitted regardless of whether the first computing device is present upon the network, and the acceptance message being submitted regardless of the access preferences specified by the first computing device; and
means for submitting a notification message to the second computing device, the notification message including a presence document having data representative of an activity level and availability level associated with the first computing device, the notification message being submitted regardless of whether the first computing device is present upon the network.
36. The system of claim 35 further comprising:
means for storing information obtained from the request message submitted by the second computing device regarding the second user's desire to monitor the presence of the first user,; and
means for submitting the stored information to the first computing device in response to a request message from the first computing device to obtain the stored information.
37. The system of claim 35 further comprising means for aggregating one or more presence documents received from the first computing device into a single presence document, the single presence document having data representative of an activity level and availability level associated with at least one presence document that indicates a high presence priority, the single presence document also including presence data associated with the one or more presence documents.
38. A method for relaying presence information to a subscriber in the absence of a presentity, the presentity operating a presence user agent that generates information indicative of the ability of the presentity to receive calls and indicative of the operating state or tasks in which the presentity is engaged, the method comprising:
storing information obtained from a subscriber request message into an accessible memory location, the stored information including one or more values that uniquely identify the subscriber from amongst a plurality of other devices capable of communicating over the network; and
submitting the subscriber information to the presentity when the presentity is no longer absent, wherein the presentity makes a determination whether to grant the subscriber access to the information generated by the presence user agent.
39. The method of claim 38 further comprising submitting the information generated by the presence user agent to the subscriber when a determination is made to grant the subscriber access to the information.
40. The method of claim 39 wherein the step of determining is made according to access preferences assigned by the presentity.
41. The method of claim 38 wherein the step of submitting includes transmitting a presence document to the subscriber having data indicative of the ability of the presentity to receive calls and indicative of the operating state or tasks in which the presentity is engaged.
42. A computer-readable medium having computer-executable instructions for performing the steps recited in claim 38.
Description
    TECHNICAL FIELD
  • [0001]
    The invention relates generally to communication between computers over a network, and more particularly, to methods and systems for communicating the presence of one or more devices from over the network.
  • BACKGROUND OF THE INVENTION
  • [0002]
    With today's widespread use of the Internet as a primary communication medium, pre-existing communication devices are now being designed so that they are capable of communicating over packet-switched networks. For instance, telephones, pagers, cell phones, handheld computers, and even fax machines can now be accessed and controlled from over the Internet. Communication over a packet-switched network using communication devices that traditionally communicate over a circuit-switched telephone network is generally known as network telephony, or IP telephony when an IP network is involved.
  • [0003]
    A user having several communication devices (e.g., a cell phone, laptop and handheld PC) can configure each of these devices to identify itself to the network using a single alias or identifier (e.g., username@b.com). In this way, the user is not limited to communicating with others via a single device, but instead has the ability to communicate via several different devices. Nonetheless, the ability for a user to have several devices “present” on a computer network creates a need for other users to be able to determine the status or state of the user's many devices.
  • [0004]
    “Presence” refers to the availability, proximity, activity level or operating state of a user on a network. The ability for users to monitor each other's presence is a feature offered in connection with many applications that support network telephony. For example, instant messaging applications such as MSN or Yahoo have an “available buddy” feature, in which a user of the application can determine whether select users are available for engaging in communication. The data retrieved and returned to the buddy list, e.g. “John OFFLINE” or “Susan ACTIVE,” is known as “presence information,” and is generally maintained by a program called a “presence agent.” According to most conventional network configurations, the presence agent is implemented as a dedicated server. Typically, the presence agent supports network telephony protocols such as the session initiation protocol (SIP). Device users can register their devices with the presence agent (e.g., via a registrar module) in order to have their presence maintained and to allow various programs on the network to facilitate network telephony services. As such, a first device user wishing to detect the presence of a second device user does so by “subscribing” with the presence agent, such as via a SIP SUBSCRIBE message. The presence agent intermediates between the first user, also known as the watcher, and the second user to facilitate the communication of the second device user's presence information to the first device user.
  • [0005]
    The ability of a presence agent to accurately determine and maintain presence information for one or more users significantly enhances communication and task completion over the network. For example, a very mobile user may only be on the network at certain times throughout the day, and may be accessing the network from varying locations. By subscribing as a watcher of this mobile user, it becomes possible for another user to detect the presence of the mobile user during the times at which the mobile user's computing device is actually connected to the network. So, when the mobile user is present, the watcher can correspond instantly with the mobile user via a chat session or videoconferencing call, as opposed to resorting to a non-real-time communication such as e-mail messaging. Hence, presence is an especially important factor for facilitating communication between users. Unfortunately, however, conventional presence agents are unable to determine presence with sufficient granularity. As an example, consider a scenario where a second user has subscribed with a presence agent as a watcher of a first user. If the first user is in the second users' available buddy list, and the first user's computing device suddenly goes into sleep mode, the second user's buddy list should still indicate that the first user's device is available for communication rather than indicate that the first user's device is “offline.” An indication of “offline” does not accurately reflect that the first user's device may still be connected to the network and may still be able to receive messages. Yet, many presence agents only provide generalized presence information, such as “offline” or “unavailable,” and do not account for more ambiguous presence conditions.
  • [0006]
    Some other presence agents attempt to more accurately present presence information by shortening the subscription periods of watchers. According to this mode of operation, when a watcher subscribes with the presence agent, the watcher's subscription time is minimized (e.g., by using a shortened timeout period), and so the watcher must frequently renew the subscription. Each time the watcher renews, the watcher receives the most current presence information. While this method of presence determination can be effective for detecting subtle changes in presence, the constant updating of subscriptions causes the presence agent to use more bandwidth and increases its overall processing time. Furthermore, this method increases the message load on a server that operates the presence agent resulting in a significant reduction in scalability.
  • [0007]
    Still further, many presence agents are unable to provide accurate presence information for those users who have several devices registered and present upon the network. Current standards for retrieving presence information pertaining to multiple device users simply call for the presence of each individual device to be determined, and then presented to the watcher as a compound document, such as an HTML file. As a result, the watcher that receives the compound document indicating the presence information for each device must “guess” which device's presence information most accurately reflects the presence of the user. However, just because a user's mobile phone, pager, laptop, PDA, and desktop computer are all present on the network does not mean the user is using all of them. Indeed, the presence information of the individual devices says very little about the actual presence (e.g., activity or availability) of the user.
  • SUMMARY OF THE INVENTION
  • [0008]
    The invention presents a method and system for detecting and communicating the presence of one or more users on a computer network. This includes users who employ devices that communicate over a network via the SIP protocol, and other common network protocols. The present invention also relates to a method and system for aggregating the presence information of multiple devices associated with a single user such that more accurate and useful presence information pertaining to the user can be determined.
  • [0009]
    In accordance with an embodiment of the invention, a network device, such as a server, is equipped with a presence agent that facilitates the exchange of presence information between a first user and a second user. The first user is referenced by a unique alias, such as user@some_network.com, and has one or more computing devices registered with the network server (e.g., via a registration module or dedicated registrar server). When the second device wishes to access presence information pertaining to the first user, the second user employs a computing device to send a subscription request to the network server in order to become a “watcher” of the second device user. Once received, the subscription request is then forwarded to the presence agent operating upon the network device for processing. The network device then generates and submits an acceptance message to the first user's device, followed by a standard NOTIFY message. As such, acceptance of the subscription is sent to the second user regardless of whether or not the second user is actually granted access to the presence information, as determined according to access preferences specified by the first user.
  • [0010]
    In order to grant access to the second user, the presence agent checks an access control list (ACL) that comprises one or more access rules or preferences. The first user defines these rules in order to affect how its presence information is shared with one or more watchers. When the ACL specifies that the second user may access the presence information, the NOTIFY message includes a presence document that contains the presence information. In contrast, when the ACL specifies that the watcher is not to access the presence information, the NOTIFY message is sent to the watcher without the presence document. Because the network server always sends an acceptance and notification message to the watcher, the subscription process is facilitated without any intervention by the first user, thus minimizing the processing requirements of the presence agent.
  • [0011]
    In accordance with another embodiment of the invention, the presence agent operating upon the network device maintains an offline subscribes data structure for storing information associated with any subscription requests submitted by one or more users wishing to access the first user's presence information. The subscription information is stored into the data structure whether the first user to be watched is or is not present (e.g., inactive, logged off), and includes data such as a URI (uniform resource locator) that uniquely identifies a particular subscriber. As such, when resuming upon the network again, the first user's one or more computing devices send a subscribe request to the network device in order obtain any data stored in the offline subscribes data structure. In response to this request, the presence agent operating upon the network device accesses the offline subscribes data structure, extracts the data, and forwards a NOTIFY message to the first user's device along with the data. When the first user authorizes the subscription, the registered device user updates its presence document, and forwards it to the network device. The network device then updates the ACL accordingly, and a NOTIFY message is sent to the subscribing user along with a presence document containing the presence information. On the other hand, when the subscription is not acceptable, the ACL is updated to specify prevention of access by the subscriber, resulting in a NOTIFY message being sent to the subscriber without any presence information.
  • [0012]
    In yet another embodiment of the invention, an aggregator component executed by the network device aggregates the presence information of several devices associated with a user into a single presence document. For user's that employ several computing devices (e.g., PDA, cell phone, laptop, and pager), a presence document for each individual device is generated and sent to the presence agent operating upon the network device for processing. Upon receiving these documents, the network device executes an aggregator component that performs a computation to determine the presence priority setting of each document. The presence priority setting of a document is a value that is determined according to attributes that include an activity level and an availability level. The activity level indicates what action the first user or corresponding device may be engaged in (e.g., idle, away), giving an indication of the likelihood of calls or messages actually being accepted from over the network. In relation to the activity level is the availability level, which indicates whether the user or user's corresponding computing devices may actually receive calls based on various network conditions (e.g., offline, online). A description attribute may optionally be associated with the activity or availability level to provide a functional or plain-language description of the assigned level. By summing up these values, the aggregator component identifies which device has the highest presence priority setting, and merges the presence information of each device into a single, or aggregate, document. The resulting presence information contained within the single document indicates to the watcher which of the user's devices most accurately reflects the presence of the user.
  • [0013]
    Additional features and advantages of the invention will be made apparent from the following detailed description of illustrative embodiments that proceeds with reference to the accompanying figures.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0014]
    While the appended claims set forth the features of the present invention with particularity, the invention, together with its objects and advantages, may be best understood from the following detailed description taken in conjunction with the accompanying drawings of which:
  • [0015]
    [0015]FIG. 1 is an example of a computer network;
  • [0016]
    [0016]FIG. 2 is an example of a computer;
  • [0017]
    [0017]FIG. 3 is a diagram illustrating a server facilitating a call between a first computing device and a second computing device over the network in accordance with an embodiment of the invention;
  • [0018]
    [0018]FIG. 4 is a diagram illustrating the mechanism employed by a first computing device of FIG. 3 for setting presence with a server according to an embodiment of the invention;
  • [0019]
    [0019]FIG. 5 is a diagram illustrating the mechanism employed by a first computing device of FIG. 3 for setting access preferences with a server according to an embodiment of the invention; and
  • [0020]
    FIGS. 6-8 illustrate the operation of an aggregator component for processing one or more presence documents.
  • DETAILED DESCRIPTION OF THE INVENTION
  • [0021]
    The invention relates to a method and system for detecting and communicating the presence of one or more users on a computer network. Also, the invention relates to a method and system for aggregating the presence information of multiple devices associated with a single user such that overall presence information pertaining to that user can be determined. In the context of the invention, presence information describes any data that specifies the availability, proximity, activity level or operating state of a computing device or corresponding user of the device from over the network. For example, presence information can be provided to a user of a computing first device (a watcher) in the form of a presence document, and analyzed by watcher to determine if a user of another computing device (a registered device user) is online or offline, busy or idle. This determination is dependent on various factors, including the current activity of the user being maintained, the present operating state of the computing device of the user being monitored, etc. In an effort to stay consistent with common terminology used in the computing industry, this detailed description will use the term “presence” synonymously with the term “presence information” at various times. Moreover, the terms “presence” or “presence information” should be interpreted as relating to the user, or one or more devices employed by the user.
  • [0022]
    Also, the invention will be described throughout the course of the description with respect to SIP as a messaging protocol for supporting communication between devices in accordance with the teachings of the invention. Once again, those of skill in the art will recognize that SIP is only one protocol suitable for supporting network telephony and presence, and that other protocols may just as easily be utilized. Other such protocols include the H.323 standard and the Single Computer Telephony Protocol (SCTP). The invention is not limited to any one protocol or messaging implementation, as any means or medium by which two or more devices may communicate to support network telephony applications is suitable. Furthermore, the invention is not limited to any particular network telephony configuration, as any means for exchanging messages between one or more computers via SIP or the like is suitable for use in connection with the invention. This includes network configurations where computing devices such as proxies, redirect servers, registration terminals, presence servers and agents, and one or more clients or “presentities,” are involved in the communication.
  • [0023]
    As used herein, the term “network telephony” relates to any process wherein a network, such as the Internet, is used as a transmission medium for placing telephone calls or facilitating multimedia sessions between two or more computing devices. This can include multimedia sessions where streaming media (e.g., audio and video data) is exchanged over the network, conference calls, virtual meetings, and other telephony sessions. The term “network telephony” is generic, and can therefore describe or pertain to several other communication processes involving the exchange of packetized data. These include, but are not limited to, IP telephony, Voice over the Internet (VOI) and Voice over IP (VoIP). Also, as used herein, the term “call” (e.g., telephone call) relates to a session in which an exchange of information is commenced or initiated between two or more computing devices over a network, such as with the aide of a telephony application (e.g., MICROSOFT NETMEETING TM). In the context of the present invention, a “call” is synonymous to a “message” being sent between devices, and those terms will be used interchangeably at times to describe the interaction between two or more devices over the network.
  • [0024]
    An example of a networked environment in which the invention may be used will now be described with reference to FIG. 1. The example network includes several computers 20 communicating with one another over a network 30, such as the Internet, as represented by a cloud. Network 30 may include many well-known components, such as routers, gateways, hubs, etc. and may allow the computers 20 to communicate via wired and/or wireless media.
  • [0025]
    Referring to FIG. 2, an example of a basic configuration for a computer on which the system described herein may be implemented is shown. In its most basic configuration, the computer 20 typically includes at least one processing unit 42 and memory 44. Depending on the exact configuration and type of the computer 20, the memory 44 may be volatile (such as RAM), non-volatile (such as ROM or flash memory) or some combination of the two. This most basic configuration is illustrated in FIG. 2 by dashed line 46. Additionally, the computer may also have other features/functionality. For example, computer 20 may also include additional storage (removable and/or non-removable) including, but not limited to, magnetic or optical disks or tape. Computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to stored the desired information and which can be accessed by the computer 20. Any such computer storage media may be part of computer 20.
  • [0026]
    Computer 20 may also contain communications connections that allow the device to communicate with other devices. A communication connection is an example of a communication medium. Communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media. By way of example, and not limitation, communication media includes wired media such as a wired network or direct-wired connection, and wireless media such as acoustic, RF, infrared and other wireless media. The term computer readable media as used herein includes both storage media and communication media.
  • [0027]
    Computer 20 may also have input devices such as a keyboard, mouse, pen, voice input device, touch input device, etc. Output devices such as a display 48, speakers, a printer, etc. may also be included. All these devices are well known in the art and need not be discussed at length here.
  • [0028]
    In accordance with an embodiment of the invention, a server provides presence information regarding a first computing device, which is registered with the server, to a second computing device which operates as a watcher, as illustrated in FIG. 3. The server, labeled 102, is a computing device that is capable of processing messages conforming to a protocol for supporting telephony (e.g., SIP, H.323). The first computing device, labeled 104, and the second computing device labeled 106 are devices capable of communicating with one another over a computer network using network telephony. A first user 103 uses the first computing device 104, while a second user 107 uses the second computing device 106. In order to support the communication of presence information, the server 102 includes various components, such as a program referred to as a presence agent (PA) 152, a registration program (R) 154, and an access control list (ACL) 156. The presence agent 152 receives requests for presence information from one or more computing devices that act as “watchers,” responds to the requests, and generates notifications of changes in the presence of computing devices being “watched”. To maintain that presence information, the server 102 includes a memory 158 for storing the data. The registration program 154 processes registration request messages (e.g., an SIP REGISTER messages) received from over the network. Registration messages are sent to the registration program 154 by computing devices that are new to the network, and serve to “introduce” such new devices to the presence agent program 152. Operating in connection with the presence agent 152 and registration program 154 is the access control list 156. The ACL 156 may be implemented as a data structure, database, or even as a program, and is referenced by the server 102 to allow the server 102 to determine how it is supposed to interact with other devices on the network.
  • [0029]
    As shown in FIG. 3, the first user 103 operates the first computing device 104 to establish register with the server 102. The registration program 154 handles this registration process. In some embodiments, the registration program 154 is implemented as a dedicated computing device known as a registrar (not shown), which operates in conjunction with a proxy server that handles SIP messages. Any mechanism by which the first user 103 may register one or more devices in order to facilitate network telephony services, and particularly the communication of presence information, is within the scope of the invention.
  • [0030]
    The first computing device 104 executes a program, referred to as a presence user agent (PUA) that generates presence information relating to the first user 103. The PUA may be implemented on hardware/firmware as part of a stand-alone program or operating system. It may also be implemented as part of other software applications such as e-mail utilities, instant messaging software, network monitoring programs, video/audio conferencing programs, etc. When the second user 107 wishes to gain access to the presence information of the first user 103, the second user 107 interacts with the second computing device 106 to generate a SUBCRIBE message. The second computing device 106 sends the message to the server 102 (event 120). The SUBSCRIBE message alerts the server 102 that the second user 107 wants to “subscribe” as a watcher of the first computing device 104 and the corresponding first user 103. In various embodiments of the invention, the subscribe message contains an event header that specifies presence as the basis for the subscription request (e.g., event.presence). The event header causes the presence agent 152 to initiate a call to the server 102 to process the message as a presence subscription (as opposed to some other type of network event). In response to the subscription request, the server 102 (acting as a presence agent on behalf of the first computing device 104) stores the contents of the request into a data structure 150, referred to as an offline subscribes data structure. The offline subscribes data structure 150 is implemented as a file, record, table, index or any other scheme or mechanism for organizing data. Subscription information pertaining to each subscriber (e.g., URI, network address information of the subscriber) is stored in the offline subscribes data structure 150, allowing it to act as a persistent record of the subscription requests. In this way, the subscription information is maintained so as to be readily accessible to the presence agent 152.
  • [0031]
    After the subscription request is stored into the offline subscribes data structure 150, the server 102 makes a determination as to whether to accept the subscription request. This determination is made according to rules or conditions defined by the first user 103, which are maintained in the access control list (ACL) 152. In general, the ACL 152 includes access preferences that informs the server 102 as to which permissions, or access rights, a particular user or group of users has with respect to a particular resource-in this case, the presence information related to the first computing device 104 and first user 103. The actual settings of the ACL 152 as defined by the first computing device 104 will be described in a later section of this description. When the subscription message is accepted, the presence agent 152 generates an acceptance message, such as a SIP 202 message (event 124) and a NOTIFY message (event 126), which the server 102 sends to the second computing device 106. For standard telephony protocols such as SIP, the body of the NOTIFY message contains the presence information of the first computing device 104 and/or of the corresponding first user 103. If the presence agent 152 rejects the request, the presence agent 152 generates an acceptance message (e.g., a SIP 202 message) in the same manner as when the request is accepted. However, the server 102 does not send presence information to the second computing device 106, but rather sends a NOTIFY message containing no presence information. As a result, the second user 107 is allowed to subscribe as a watcher of the first user 103, but does not gain access to the presence information.
  • [0032]
    According to an embodiment of the invention, access to presence information pertaining to the first user 103 and/or the corresponding first computing device 104 is limited only to those users specified by the ACL 156. Since the server 102 accepts all subscription requests, access to the presence information of the first computing device 104 and/or the first user 103 is not dependent upon the first computing device 104 or first user 103 actually being present. In other words, it is possible for the first computing device 104 or first user 103 to not be present upon the network (e.g., logged off, disconnected, or in a busy state) without jeopardizing the ability of another device to subscribe as a watcher. In conventional systems, the absence of the first computing device 104 results in all SUBSCRIBE requests received by the server 102 being rejected. Consequently, in such systems the watcher must resubmit the request periodically until the subscription is finally accepted. Obviously, this is not desirable as this phenomenon increases the amount of traffic to be handled by the server 102, and, ultimately reduces its scalability.
  • [0033]
    The server 102 overcomes this challenge through the use of the offline subscribes data structure 150. When the first computing device 104 and the first user 103 resume their activity upon the network after having previously not been present upon the network, the first computing device 104 sends a SUBSCRIBE request to the server 102 to obtain any data stored in the offline subscribes data structure 150 (event 128). This subscribe request differs from the subscription request transmitted by the second computing device 106 for obtaining presence information (event 120). In that, the subscribe message sent by the first computing device 104 indicates to the server 102 that the first computing device 104 wishes to determine which other devices, if any, have attempted to monitor its presence or that of the first user 103 during the offline period. In response to this request, the server 102 accesses the offline subscribes data structure 150, extracts the data, and forwards an acceptance message to the first computing device 104 followed by a NOTIFY message (events 130 and 132). The body of the NOTIFY message contains the data from the offline subscribes data structure, such as a list of the subscribers and their corresponding network address information. Armed with this information, the first computing device 104 is able to recognize all of the computing devices and users that subscribed as watchers during the time it was not present on the network.
  • [0034]
    Once the first computing device receives the list of subscribers obtained from the offline subscribes data structure, the first computing device 104 and/or the first user 103 determines whether to accept or reject the subscription requests. The first user 103 makes this determination by responding to message prompts generated to a display screen 110 of the first computing device 104 by a presence enabled program (e.g., the PUA). In this scenario, the first user 103 responds using an input device such as a mouse or keyboard. Subscription requests can also be accepted or rejected by the first computing device 104 automatically, without user intervention, according to the preferences or auto-settings of the first computing device 104. When a subscription request is accepted, the first computing device 104 generates an updated presence document, which is a file that contains the presence information, and forwards it to the server 102 (event 134). The presence agent 152, operating on the server 102, processes the contents of the presence document, and stores the presence information obtained from the document into an accessible memory location 158 for subsequent retrieval. Also, upon receiving the presence information, the ACL 156 is updated to indicate that the second user 107 has been permitted to act as a watcher of the first computing device 104 and the first user 103 (event 136). As such, the second computing device 106 may freely access the presence information of the first computing device 104 and first user 103. On the other hand, if the subscription is not accepted, the ACL 156 is updated to indicate that the second user 107 is not to have access to the presence information (event 136). No subsequent NOTIFY message is sent to the second computing device 106 in this case, ensuring that the second user 107 is not aware of the presence of the first computing device 104 or first user 103.
  • [0035]
    In the foregoing paragraphs, the operation of the server 102 for facilitating the communication of presence information is described. To ensure the most accurate portrayal of presence information to a watcher, in various embodiments of the invention the first computing device 104 is able to insert descriptive presence information into any updated presence document and transmit the presence document to the server 104 to the presence agent 152 Further, the server 102 recognizes the differences between the updated presence document and previous versions of the presence document to the presence document and based on these differences, more accurately portrayal the presence of the first computing device 104 and/or the first user 103. Also, the first computing device 104 is able to update the ACL 156 to control the extent to which other devices may access the presence information maintained by the server 102. In the following paragraphs, the mechanisms employed by the first computing device 104 and server 102 for setting presence and controlling access to the presence information is described. This functionality is presented in FIGS. 4-5.
  • Setting and Updating Presence Information
  • [0036]
    Referring now to FIG. 4, a computer network includes a first computing device 200 that is operated by a first user 200, a server 201, and a second computing device 211 having that is operated by a second user 210. Each of these components has much of the same functionality as those of FIG. 3, with additional features described in the following paragraphs. The first computing device 200 is capable of generating presence information and exchanging it in the form of a presence document with the server 201 in accordance with an embodiment of the invention. The presence document 207 contains information pertaining to the presence of the first computing device 200 and first user 202. Specifically, the first computing device 200 submits the presence document by sending a SERVICE message 204 to the server 201 (event 300). The service message 204 conforms to a standard telephony protocol format such as SIP, and comprises instructions within the message body for initiating the Set Presence remote procedure call. The Set Presence procedure call is a function or method executable on the server 201, that causes the agent 152 operating on the server 201 to set (update) the presence information for the first user 202 and the first computing device 200 in memory 158. Preferably, the service message supports the exchange of complex object types and not just text. Suitable protocols or mechanisms for supporting the transmission of complex objects include, but are not limited to, Internet Inter-ORB Protocol (IIOP), COM/DCOM based protocols, and the Simple Object Access Protocol (SOAP). In the illustrated embodiment, the Set Presence procedure call is contained within a SOAP envelope within the message body. SOAP allows remote procedure calls to be embedded within messages (as a SOAP envelope), and invoked by a receiving device. Several Set Presence calls may be indicated within a single SOAP envelope in order to permit several devices to update their presence information simultaneously.
  • [0037]
    In further accordance with an embodiment of the invention, the presence document 207 generated by the first computing device 200 is comprised of one or more attributes that relate to the presence of the first computing device 200 or corresponding first user 202. Such attributes include an availability level 208 and activity level 209. Also, in association with the availability level 208 and activity level 209 is the description attribute 210. The description attribute provides a functional or plain-language description of the assigned activity or availability level, and is specified at the discretion of the first computing device 200. For each presence document generated by a computing device related to the first user 202, one activity level and availability level is specified. By specifying these attributes within the presence document 207, the server 102 is able to provide a more accurate indication of the presence for the first computing device 200 or first user 202 to a user 211 that is acting as a watcher.
  • [0038]
    The availability level 208 is an attribute that indicates whether the first computing device 200 or first user 202 may actually receive calls. The first computing device 200, specifies various availability levels, including those shown in TABLE 1 below. Yet, only one availability level need be specified for a single device at a time.
    TABLE 1
    Availability level settings
    Associated
    Availability Description of
    Level Availability Level Explanation
    000 Offline The user cannot receive calls.
    100 Undetermined The user may be online, but there is no
    way to know until a call is attempted.
    200 Connected The user has a device currently
    connected that can receive calls.
    300 Online The user is in proximity to a device that
    can receive calls.
  • [0039]
    The availability levels are spread into classes, where each class is a multiple of 100. This is analogous to the response code numbering system used in communication protocols such as the hypertext transfer protocol (HTTP) and SIP. Those skilled in the art will recognize, however, that different values or classes may be used to specify the availability level of the first computing device 200, and that the invention is not limited to any specific implementation. For example, the first computing device 200 may want to indicate a greater level of availability than “online,” but may not want to show an availability of “always,” and create a new availability value 250: “likely to take call”. If the second computing device 211 is not familiar with this particular attribute receives such presence information, it can abstract it to a class in which is it familiar (e.g., it can generalized to 200: “connected”).
  • [0040]
    The activity level 209, provides an indication of the action in which the first computing device 200 or corresponding first user 202 is engaged. Also, the activity level 209 indicates to the second computing device 211 or other devices that are in the role of watchers the likelihood of calls or messages being accepted by the first computing device 200 or first user 202. Various activity levels may be specified within the presence document 207, as shown in Table 2 below.
    TABLE 2
    Activity level settings
    Associated
    Activity Description of
    Level Activity Level Explanation
    000 No explicit There is no information about the activity
    activity of the user.
    100 Away The user is away from the device
    150 At lunch The user is taking a lunch break
    200 Idle No specific activity is currently being
    engaged
    300 Temporarily un- The user is not available at the present time
    available
    400 Active The user is active
    500 In call The user is already participating in a
    communications session.
    600 Busy The user is busy
    700 Do not disturb The user does not want to participate in a
    communication session
    800 Always User will stop whatever they're doing to
    interruptible receive a call.
  • [0041]
    Again, those skilled in the art will recognize that the invention is not limited to the set of values or activity classes shown in TABLE 2. Also, it will be recognized by those skilled in the art that specifying the activity level 209 of the 208 first computing device 200 or user 202 in connection with the availability level ensures for more accurate presence. This is in contrast with many existing systems for conveying presence information, in which less useful presence attributes are provided. For example, if a presence document only indicates that the user is “busy,” this is not sufficient information for the watcher 211 to determine if calls can actually be placed with the first computing device 200. Just because the first user 202 is busy does not mean that calls are not to be received from the second computing device 210. Various embodiments of the invention account for such intricate distinctions in presence by indicating both the activity level (e.g., busy or active) and availability level (e.g., connected) of a computing device and/or its corresponding user.
  • Setting the Access Control List (ACI)
  • [0042]
    As described earlier with respect to FIG. 3, when a computing device is not present or a network, but later resumes its activities upon the network, it can access a data structure from the network device to determine which users have subscribed to watch it. At this point, the computing device or its corresponding user decides whether to allow the one or more subscribers access to its presence information. The decision is made known to the server that is handling presence administration for the network device by way of an access control list (ACL). In accordance with another embodiment of the invention, a computing device sets its access preferences with a server via a Set ACL procedure call, as illustrated in FIG. 5.
  • [0043]
    The Set ACL procedure call is an executable function or method that specifies the ACL settings for the computing device 300 of the network shown in FIG. 3. As shown, the computing device 300 submits a SERVICE message 304 to a server 102 in order to initiate the setting, or updating, of the ACL 156. The SERVICE message comprises one or more setACL procedure calls 305, which trigger the presence agent 152 operating on the network device 102 to set (update) the ACL 156. Similar to the Set Presence call described above, the setACL procedure call is contained within a SOAP envelope that comprises the body of the SERVICE message. Multiple setACL calls may be contained within a single service message 304 in order to authorize one or more subscribers. When the network device 102 receives the SERVICE message, the presence agent 152 processes it, and the access preferences 306 indicated by the service message 304 are stored within the ACL 156.
  • [0044]
    The concept of access control as it applies to this embodiment of the invention will now be discussed in more detail. For each user or group of users of a network, there is a corresponding access control list that specifies what that user or group of users is permitted to do with regard to other users or groups of users. In this embodiment of the invention, there are at least two types of rights: “Incoming” and “Presence.” Incoming rights govern things such as who is permitted to initiate communication with the user. Presence rights govern the ability for a user to monitor whether another user is online. The values to which each of these rights can be set in an embodiment of the invention are as follows:
    Abbrevi-
    Right Value ation Meaning
    INCOMING Allow “A” User having this level of access can
    invite another user to communicate.
    Timeout “T” User having this level of access can
    invite another user to communicate,
    but the user's real-time communica-
    tion client program will always time-
    out the call. This is a polite way of
    blocking the and equates to the phone
    “ringing off the hook”.
    Deny “D” User having this level of access
    cannot invite another user to
    communicate.
    PRESENCE Allow “A” A user can query or subscribe to
    another user's presence and will be
    notified when status changes occur
    Prompt “P” A user having this level of access can
    attempt to subscribe to another user's
    presence, but the other user will be
    prompted for permission
    Block “B” A user having this level of access
    may subscribe to another user's
    presence, but the other user will
    always appear to be offline.
    Deny “D” A user with this level of access can-
    not even subscribe to the other user
  • [0045]
    Continuing the discussion of access control, a user or a group of users will also be referred to herein as an “identity.” There are many possible ways to designate an identity. In an embodiment of the invention, the following types of identities exist.
    Identity Type Meaning
    ALL All users and groups.
    DOMAIN All users in this domain
    URI Used to specify a particular user.
  • [0046]
    Each access control list has one or more access control entries. Each access control entry confers one or more rights to an identity. For example, possible access control entries for the user joeb@microsoft.com include:
    Identity Access Right(s) Meaning
    ALL INCOMING = Anybody can communicate
    Allow with joeb@microsoft.com
    PRESENCE = Nobody can access the
    Prompt joeb's presence without
    joeb being prompted to
    grant permission.
    DOMAIN INCOMING = Anybody at Microsoft can
    “microsoft.com” Allow communicate with Joeb
    PRESENCE = Nobody at Microsoft can
    Prompt access the joeb's presence
    without joeb being promp-
    ted to grant permission.
    URI INCOMING = The user roberbr@micro-
    “roberbr@microsoft.com” Deny soft.com is specifically
    PRESENCE = blocked from any access to
    Deny joeb.
  • [0047]
    According to an embodiment of the invention, the administrator of a network can set a “default” access control list that is applied to all users in a particular group. If an access control entry in the user's personal access control list has the same identity as an access control entry in the default access control list, then the personal access control entry takes precedent over the default access control entry. This merging is done at the server when a user's access control list is retrieved. Client software will only ever see the merged access control list. At install, according to an embodiment of the inventions, the default access control list is set to:
    Identity Access Right(s) Meaning
    DOMAIN INCOMING = Allow Allow others in the user's domain
    “<insert PRESENCE = Allow full access to the user
    domain
    Name>”
    ALL INCOMING = Allow Defaults the access for all other
    PRESENCE = Prompt users to allow incoming communi-
    cation, but no access to presence
    without the owner explicitly
    granting
  • [0048]
    The administrator may also set a “mandatory” access control list that is applied to all users in a particular group.
  • [0049]
    Up to this point, the invention has been described with respect to the interaction between one or more users that act as watchers, a computing device, and a corresponding user being watched. However, in many instances the user being watched may have more than one device (registered) with the network device at a time. In such cases, presence information is generated by each of the devices, resulting in several presence documents being generated and exchanged with the server that handles presence administration. For conventional servers, a watcher seeking to obtain presence information pertaining to a user of several devices would receive several individual presence documents. Or, in some instances, the watcher would receive a compound document that simply lists the presence of each device, and nothing more. According to another embodiment of the invention, however, an aggregator component executed by the server that handles presence administration aggregates the presence information of several devices pertaining to a single user into a single presence document. In this way, the watcher is able to obtain a more precise indication of the overall presence of the user. Operation of embodiments of the invention in which this technique is employed is described in the following paragraphs, and with respect to FIGS. 6-8.
  • [0050]
    Referring now to FIG. 6, a user 320 employs several telephony devices, including a desktop computer 322, laptop computer 324, and cell phone 326. Each device is registered with a server 328, and generates presence information pertaining to itself and/or the corresponding user 320. To communicate the presence information with watchers 410 (or several watchers), each of the registered devices 322-326 submits a SERVICE message to the server 328 that allows it to invoke the Set Presence procedure call, as described earlier. Upon receiving the SERVICE messages (and corresponding presence documents), the server 328 executes an aggregator module 340 that analyzes each presence document to determine their respective presence priority settings. The presence priority setting is a value calculated using information specified in the presence document for a device, such as from the summation of the availability level 208 and activity level 209 of a presence document 207, to determine the level of presence of the respective device. A higher presence priority setting for a particular presence document indicates a higher degree of presence with respect to a particular computing device. It should be noted that a higher degree of presence is not strictly based upon numeric values, but rather to the meaning associated with a particular availability or activity level. By comparing the presence priority settings of several presence documents, the presence agent 152 can determine which document most accurately reflects the presence of the user 320 and the user's corresponding computing devices 322-326. In turn, the presence agent 152 conveys this information to the watcher 320 to ensure the watcher 320 has access to the most accurate presence information.
  • [0051]
    With respect now to FIG. 7, the aggregator component 340 operates upon the server 328 to interpret presence documents generated by one or more registered devices, in accordance with an embodiment of the invention. The aggregator component 340 is implemented as an executable module, such as a dynamic link library (DLL) or computer executable application that is capable of processing presence information. Presence information is generated by the registered devices (desktop 322, laptop 324 and cell phone 326), and conveyed as presence documents 350-354. As described previously with respect to the invention, each presence document comprises information such as an availability level, an activity level, description attribute and any other relevant presence information. Consider the presence document 350 generated by the desktop computer 322, for example, which specifies an availability level 356 equal to 300 and an activity level 358 equal to 000. The activity 358 and availability levels 356 provide an indication of the current state or operation of the desktop computer 322 or user 320, and correspond to the description attributes “online” 360 and “no explicit activity” 362 respectively. Also included within the presence document 350 is any other information 364 pertaining to the presence of the desktop computer 322, such as diagnostic data, user profile data, or the like. Like the desktop computer 322, the laptop computer 324 and cell phone 326 also generate presence documents in a similar fashion.
  • [0052]
    Once the server 328 receives the presence documents 350-354, the aggregator component 340 performs a computation to determine which document indicates the highest presence priority setting (event 380). More specifically, the aggregator component 340 calculates the presence priority setting for each document such as by comparing the indicated activity level and availability level values and setting the presence priority setting to that of the highest value. For example, the presence priority settings for the desktop computer 322, laptop computer 324 and cell phone 326 as calculated as shown in TABLE 4 below.
    TABLE 4
    Presence priority settings for the registered devices of FIGS. 6 and 7
    Device Availability Activity Description
    Desktop Computer 322 300 000 online, no explicit
    activity
    Laptop computer 324 200 400 connected, active
    Cell Phone 326 000 000 offline, no explicit
    activity
    Aggregate presence 300 400 online, active
  • [0053]
    As TABLE 4 shows, the laptop computer 404 has a presence activity setting of 400, the highest of all the computing devices. This setting indicates to the presence agent 152 that the laptop computer 324 is connected to the network for receiving calls, and that the user 320 is actively using the laptop computer 326. Hence, while the desktop computer 322 and cell phone 326 are registered with the server 328, their presence priority settings indicate a lesser likelihood of them engaging in a communication session (e.g., the user 320 is not currently using these devices). In contrast, a higher presence priority setting more explicitly and accurately indicates the presence of the computing devices 322-326 and user 320.
  • [0054]
    The aggregator component 340 generates a single presence document that conveys overall presence information related to the single person who owns each of the computing devices 322-326 (event 382). In accordance with yet another embodiment of the invention, this single presence document only specifies the highest availability and activity levels of the computing devices, as illustrated in FIG. 8. Thus, since the highest availability level of the three devices is 300, and the highest activity level of the three devices is 400, the aggregate availability and activity levels are 300 and 400. Hence, the single presence document is generated such that the presence agent can detect which of the user's computing devices 322-326 indicates the highest degree of presence upon the network. In this regard, the single (or aggregate) presence document 400 indicates the availability level 402, activity level 404 and corresponding description attributes 406 and 408 associated with the desktop computer 322 and the laptop computer 400, respectively. Additionally, the other presence information 156 related to each computing device is included within the single presence document 400 just as it was indicated in the original presence documents 350-354. This single presence document 400 is then passed to the presence agent 152 operating upon the server 328 (event 386), where it is stored in an accessible memory location 158 for subsequent retrieval.
  • [0055]
    Those skilled in the art will appreciate that the resulting single presence document generated by the aggregator component 340, and having an aggregate availability level of 300 and an aggregate activity level of 400, provides a more accurate indication of presence for users that employ several computing devices. Unlike conventional means for conveying the presence information of several computing devices, the single presence document indicates the presence information associated with each device (e.g., the other relevant information 526), but only reflects the highest availability and activity level of the devices. Consequently, the information that most accurately reflects the presence of the user is what ultimately gets conveyed to any watchers. It will also be appreciated by those skilled in the art that because the aggregator component 340 operates in connection with the presence agent 152, the presence agent can call upon the aggregator component to generate a new presence document in response to common tasks performed by the server 328. For example, the presence agent 152 can activate the aggregator component 340 whenever a REGISTER request is received by the server 328 from a computing device being operated by the user 320, or conversely when a REGISTER request expires. Also, the presence agent 152 in can activate the aggregator component 340 whenever the server 328 receives a new SERVICE message that requires processing. In this way, the most up-to-date presence information for one or more computing devices is continually maintained by the presence agent 152.
  • [0056]
    In view of the many possible embodiments to which the principles of this invention may be applied, it should be recognized that the embodiment described herein with respect to the drawing figures is meant to be illustrative only and should not be taken as limiting the scope of invention. For example, those of skill in the art will recognize that the elements of the illustrated embodiment shown in software may be implemented in hardware and vice versa or that the illustrated embodiment can be modified in arrangement and detail without departing from the spirit of the invention. Therefore, the invention as described herein contemplates all such embodiments as may come within the scope of the following claims and equivalents thereof.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US6807423 *Dec 14, 1999Oct 19, 2004Nortel Networks LimitedCommunication and presence spanning multiple access networks
US6839735 *Dec 4, 2000Jan 4, 2005Microsoft CorporationMethods and systems for controlling access to presence information according to a variety of different access permission types
US20020065894 *Nov 30, 2000May 30, 2002Dalal Siddhartha R.Local presence state and user-controlled presence and message forwarding in unified instant messaging
US20030055897 *Sep 20, 2001Mar 20, 2003International Business Machines CorporationSpecifying monitored user participation in messaging sessions
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7216167 *Apr 10, 2003May 8, 2007International Business Machines CorporationSystem allowing user associating user off-line status messages of selectable content with participants on user's authorized access lists
US7231443 *Apr 10, 2003Jun 12, 2007International Business Machines CorporationSystem allowing user associating user off-line status messages of selectable content with participants on user's authorized access lists
US7269629 *Dec 30, 2002Sep 11, 2007Intel CorporationMethod and apparatus for distributing notification among cooperating devices and device channels
US7302270 *Aug 2, 2004Nov 27, 2007Cisco Technology, Inc.Time interval processing and annotation in presence systems
US7437566May 1, 2004Oct 14, 2008Microsoft CorporationSystem and method for identity confirmation of a contact published on a network
US7529255Apr 21, 2005May 5, 2009Microsoft CorporationPeer-to-peer multicasting using multiple transport protocols
US7539727Jul 1, 2003May 26, 2009Microsoft CorporationInstant messaging object store
US7571228 *Apr 22, 2005Aug 4, 2009Microsoft CorporationContact management in a serverless peer-to-peer system
US7587462 *Aug 2, 2007Sep 8, 2009Intel CorporationMethod and apparatus for distributing notification among cooperating devices and device channels
US7607096Oct 20, 2009Microsoft CorporationSystem and method for a user interface directed to discovering and publishing presence information on a network
US7614060 *Nov 3, 2009Microsoft CorporationUnified concept of presence
US7617281 *Apr 25, 2005Nov 10, 2009Microsoft CorporationSystem and method for collaboration with serverless presence
US7650337Mar 31, 2006Jan 19, 2010Microsoft CorporationManaging rich presence collections
US7653191 *Jun 26, 2003Jan 26, 2010Microsoft CorporationVoice call routing by dynamic personal profile
US7653715Jan 30, 2006Jan 26, 2010Microsoft CorporationMethod and system for supporting the communication of presence information regarding one or more telephony devices
US7698307May 1, 2004Apr 13, 2010Microsoft CorporationSystem and method for synchronizing between a file system and presence of contacts on a network
US7711810 *Jan 3, 2003May 4, 2010Nortel Networks LimitedDistributed services based on presence technology
US7752253Apr 25, 2005Jul 6, 2010Microsoft CorporationCollaborative invitation system and method
US7752306Feb 6, 2007Jul 6, 2010The Pnc Financial Services Group, Inc.Network management for automated teller machines
US7761550 *Feb 6, 2007Jul 20, 2010The Pnc Financial Services Group, Inc.Network management for a plurality of agents using periodic status messages
US7778402 *Aug 17, 2010At&T Intellectual Property Ii, L.P.Method and apparatus for routing incoming calls to active network endpoints
US7814051Jan 9, 2008Oct 12, 2010International Business Machines CorporationManaging watcher information in a distributed server environment
US7814191Feb 6, 2007Oct 12, 2010The Pnc Financial Services Group, Inc.Methods and systems for network management using periodic status messages
US7814214Oct 12, 2010Microsoft CorporationContact management in a serverless peer-to-peer system
US7836185Jun 27, 2008Nov 16, 2010International Business Machines CorporationCommon resource management in a server cluster
US7853563Aug 31, 2005Dec 14, 2010Seven Networks, Inc.Universal data aggregation
US7856470 *May 27, 2005Dec 21, 2010Microsoft CorporationAccepting an invitation sent to multiple computer systems
US7899879Mar 1, 2011Oracle International CorporationMethod and apparatus for a report cache in a near real-time business intelligence system
US7912899 *Nov 5, 2002Mar 22, 2011Oracle International CorporationMethod for selectively sending a notification to an instant messaging device
US7917468Mar 29, 2011Seven Networks, Inc.Linking of personal information management data
US7917505Mar 29, 2011Seven Networks, Inc.Methods for publishing content
US7936865Sep 30, 2008May 3, 2011Avaya Inc.Messaging advise in presence-aware networks
US7941443 *May 10, 2011Symantec CorporationExtending user account control to groups and multiple computers
US7941542Mar 17, 2003May 10, 2011Oracle International CorporationMethods and apparatus for maintaining application execution over an intermittent network connection
US7945612 *Mar 28, 2006May 17, 2011Microsoft CorporationAggregating user presence across multiple endpoints
US7945846May 17, 2011Oracle International CorporationApplication-specific personalization for data display
US7983404 *Oct 31, 2005Jul 19, 2011At&T Intellectual Property Ii, L.P.Method and apparatus for providing presence status of multiple communication device types
US7995742Aug 9, 2011Avaya Inc.Outbound dialing decision criteria based
US8001185Aug 16, 2011Oracle International CorporationMethod and apparatus for distributed rule evaluation in a near real-time business intelligence system
US8010082Oct 19, 2005Aug 30, 2011Seven Networks, Inc.Flexible billing architecture
US8014497Oct 13, 2006Sep 6, 2011Avaya Inc.Messaging advise in presence-aware networks
US8036140Oct 11, 2011Microsoft CorporationApplication programming interface for inviting participants in a serverless peer to peer network
US8046476 *Oct 25, 2011Nokia CorporationAccess right control using access control alerts
US8050388Sep 30, 2008Nov 1, 2011Avaya Inc.Messaging advise in presence-aware networks
US8064574Nov 22, 2011Avaya Inc.Messaging advise in presence-aware networks
US8064583Nov 22, 2011Seven Networks, Inc.Multiple data store authentication
US8065405Nov 22, 2011Microsoft CorporationMethod and system for supporting the communication of presence information among computing devices of a network
US8069166 *Nov 29, 2011Seven Networks, Inc.Managing user-to-user contact with inferred presence information
US8078158Dec 13, 2011Seven Networks, Inc.Provisioning applications for a mobile device
US8098799Jan 17, 2012Avaya Inc.Messaging advise in presence-aware networks
US8107597Sep 30, 2008Jan 31, 2012Avaya Inc.Messaging advise in presence-aware networks
US8107921Jan 31, 2012Seven Networks, Inc.Mobile virtual network operator
US8108345Mar 31, 2006Jan 31, 2012Microsoft CorporationManaging rich presence collections in a single request
US8108516Sep 30, 2008Jan 31, 2012Avaya Inc.Presence tracking and name space interconnection techniques
US8116214Nov 30, 2005Feb 14, 2012Seven Networks, Inc.Provisioning of e-mail settings for a mobile terminal
US8127342Sep 23, 2010Feb 28, 2012Seven Networks, Inc.Secure end-to-end transport through intermediary nodes
US8135819Jul 1, 2010Mar 13, 2012The Pnc Financial Services Group, Inc.Methods and systems for network management using periodic status messages in automated teller machines
US8140692 *Feb 13, 2007Mar 20, 2012International Business Machines CorporationFlexibly configured presence server
US8145717 *Mar 27, 2012Siemens Enterprise Communications, Inc.System and method for providing presence age information in a unified communication system
US8150003Jan 23, 2007Apr 3, 2012Avaya Inc.Caller initiated undivert from voicemail
US8165993Dec 12, 2005Apr 24, 2012Oracle International CorporationBusiness intelligence system with interface that provides for immediate user action
US8166164Apr 24, 2012Seven Networks, Inc.Application and network-based long poll request detection and cacheability assessment therefor
US8171084Jan 20, 2004May 1, 2012Microsoft CorporationCustom emoticons
US8176086 *May 8, 2012Avaya Inc.Methods and apparatus for determining a presence of a user
US8185635May 22, 2012Microsoft CorporationTransport system for instant messaging
US8190701May 29, 2012Seven Networks, Inc.Cache defeat detection and caching of content addressed by identifiers intended to defeat cache
US8200755 *Jun 12, 2012Fujitsu LimitedPresence administration method and device
US8204953Jun 19, 2012Seven Networks, Inc.Distributed system for cache defeat detection and caching of content addressed by identifiers intended to defeat cache
US8209709Jun 26, 2012Seven Networks, Inc.Cross-platform event engine
US8218735 *Jul 10, 2012Avaya Inc.Messaging advise in presence-aware networks
US8229454Mar 22, 2004Jul 24, 2012Avaya Inc.Personal location information management
US8233461Jul 31, 2012Hewlett-Packard Development Company, L.P.Complementing network discovery with physical discovery
US8234559Jul 31, 2012Microsoft CorporationManaging rich presence collections
US8239452Aug 7, 2012Microsoft CorporationSystem and method for discovering and publishing of presence information on a network
US8255454Aug 28, 2012Oracle International CorporationMethod and apparatus for a multiplexed active data window in a near real-time business intelligence system
US8291076Oct 16, 2012Seven Networks, Inc.Application and network-based long poll request detection and cacheability assessment therefor
US8301581Sep 24, 2009Oct 30, 2012Avaya Inc.Group compositing algorithms for presence
US8316098Nov 20, 2012Seven Networks Inc.Social caching for device resource sharing and management
US8316117Nov 20, 2012At&T Intellectual Property I, L.P.Personal presentity presence subsystem
US8326985Dec 4, 2012Seven Networks, Inc.Distributed management of keep-alive message signaling for mobile network resource conservation and optimization
US8352296 *Apr 18, 2008Jan 8, 2013Microsoft CorporationManaging real time meeting room status
US8356011Jul 26, 2005Jan 15, 2013Microsoft CorporationOrganizing presence information into collections of publications
US8356080Jan 15, 2013Seven Networks, Inc.System and method for a mobile device to use physical storage of another device for caching
US8364181Jan 29, 2013Seven Networks, Inc.Electronic-mail filtering for mobile devices
US8370756May 5, 2008Feb 5, 2013At&T Intellectual Property I, L.P.Redirection of a message to an alternate address
US8392609Mar 5, 2013Apple Inc.Proximity detection for media proxies
US8402095Mar 19, 2013Oracle International CorporationApparatus and method for instant messaging collaboration
US8412675 *Apr 2, 2013Seven Networks, Inc.Context aware data presentation
US8417823Apr 9, 2013Seven Network, Inc.Aligning data transfer to optimize connections established for transmission over a wireless network
US8438633May 7, 2013Seven Networks, Inc.Flexible real-time inbox access
US8468126 *Jun 18, 2013Seven Networks, Inc.Publishing data in an information community
US8484314Oct 14, 2011Jul 9, 2013Seven Networks, Inc.Distributed caching in a wireless network of content delivered for a mobile application over a long-held request
US8494510Dec 6, 2011Jul 23, 2013Seven Networks, Inc.Provisioning applications for a mobile device
US8499035 *Jan 6, 2011Jul 30, 2013Tekelec, Inc.Methods, systems and computer readable media for providing session initiation protocol (SIP) event watcher entity information in a communications network
US8527600 *Mar 30, 2006Sep 3, 2013Fujitsu LimitedPresence managing method and apparatus
US8533306Sep 7, 2012Sep 10, 2013At&T Intellectual Property I, L.P.Personal presentity presence subsystem
US8539040Feb 28, 2012Sep 17, 2013Seven Networks, Inc.Mobile network background traffic data management with optimized polling intervals
US8549587Feb 14, 2012Oct 1, 2013Seven Networks, Inc.Secure end-to-end transport through intermediary nodes
US8561086May 17, 2012Oct 15, 2013Seven Networks, Inc.System and method for executing commands that are non-native to the native environment of a mobile device
US8566109 *Nov 29, 2005Oct 22, 2013Alcatel LucentCommon interest community service via presence messaging
US8566693Apr 4, 2011Oct 22, 2013Oracle International CorporationApplication-specific personalization for data display
US8577989Jun 14, 2007Nov 5, 2013Oracle International CorporationMethod and apparatus for a report cache in a near real-time business intelligence system
US8606909Nov 29, 2011Dec 10, 2013At&T Intellectual Property I, L.P.Real-time notification of presence availability
US8621075Apr 27, 2012Dec 31, 2013Seven Metworks, Inc.Detecting and preserving state for satisfying application requests in a distributed proxy and cache system
US8635339Aug 22, 2012Jan 21, 2014Seven Networks, Inc.Cache state management on a mobile device to preserve user experience
US8644475Feb 20, 2002Feb 4, 2014Rockstar Consortium Us LpTelephony usage derived presence information
US8661077Jan 6, 2011Feb 25, 2014Tekelec, Inc.Methods, systems and computer readable media for providing a failover measure using watcher information (WINFO) architecture
US8688822Jul 5, 2006Apr 1, 2014Oracle International CorporationPush e-mail inferred network presence
US8693494Mar 31, 2008Apr 8, 2014Seven Networks, Inc.Polling
US8694676Jan 31, 2013Apr 8, 2014Apple Inc.Proximity detection for media proxies
US8700690 *Apr 7, 2011Apr 15, 2014Microsoft CorporationAggregating user presence across multiple endpoints
US8700728May 17, 2012Apr 15, 2014Seven Networks, Inc.Cache defeat detection and caching of content addressed by identifiers intended to defeat cache
US8707188Mar 31, 2008Apr 22, 2014At&T Intellectual Property I, L.P.Caller initiated distinctive presence alerting and auto-response messaging
US8738050Jan 7, 2013May 27, 2014Seven Networks, Inc.Electronic-mail filtering for mobile devices
US8750123Jul 31, 2013Jun 10, 2014Seven Networks, Inc.Mobile device equipped with mobile network congestion recognition to make intelligent decisions regarding connecting to an operator network
US8761756Sep 13, 2012Jun 24, 2014Seven Networks International OyMaintaining an IP connection in a mobile network
US8769419 *May 11, 2007Jul 1, 2014Facebook, Inc.Presence and geographic location notification based on a setting
US8774844Apr 8, 2011Jul 8, 2014Seven Networks, Inc.Integrated messaging
US8775631Feb 25, 2013Jul 8, 2014Seven Networks, Inc.Dynamic bandwidth adjustment for browsing or streaming activity in a wireless network based on prediction of user behavior when interacting with mobile applications
US8782222Sep 5, 2012Jul 15, 2014Seven NetworksTiming of keep-alive messages used in a system for mobile network resource conservation and optimization
US8787947Jun 18, 2008Jul 22, 2014Seven Networks, Inc.Application discovery on mobile devices
US8793305Dec 13, 2007Jul 29, 2014Seven Networks, Inc.Content delivery to a mobile device from a content service
US8799410Apr 13, 2011Aug 5, 2014Seven Networks, Inc.System and method of a relay server for managing communications and notification between a mobile device and a web access server
US8804573Jun 15, 2006Aug 12, 2014Oracle International CorporationMethod and system for inferring presence of a principal based on past presence information
US8805334Sep 5, 2008Aug 12, 2014Seven Networks, Inc.Maintaining mobile terminal information for secure communications
US8805425Jan 28, 2009Aug 12, 2014Seven Networks, Inc.Integrated messaging
US8811952May 5, 2011Aug 19, 2014Seven Networks, Inc.Mobile device power management in data synchronization over a mobile network with or without a trigger notification
US8812695Apr 3, 2013Aug 19, 2014Seven Networks, Inc.Method and system for management of a virtual network connection without heartbeat messages
US8831561Apr 28, 2011Sep 9, 2014Seven Networks, IncSystem and method for tracking billing events in a mobile wireless network for a network operator
US8831647 *Apr 18, 2006Sep 9, 2014Devereux Research Ab LlcPresence-enabled mobile access
US8832228Apr 26, 2012Sep 9, 2014Seven Networks, Inc.System and method for making requests on behalf of a mobile device based on atomic processes for mobile network traffic relief
US8838744Jan 28, 2009Sep 16, 2014Seven Networks, Inc.Web-based access to data objects
US8838783Jul 5, 2011Sep 16, 2014Seven Networks, Inc.Distributed caching for resource and mobile network traffic management
US8839412Sep 13, 2012Sep 16, 2014Seven Networks, Inc.Flexible real-time inbox access
US8843153Nov 1, 2011Sep 23, 2014Seven Networks, Inc.Mobile traffic categorization and policy for network use optimization while preserving user experience
US8849902Jun 24, 2011Sep 30, 2014Seven Networks, Inc.System for providing policy based content service in a mobile network
US8861354Dec 14, 2012Oct 14, 2014Seven Networks, Inc.Hierarchies and categories for management and deployment of policies for distributed wireless traffic optimization
US8862657Jan 25, 2008Oct 14, 2014Seven Networks, Inc.Policy based content service
US8868753Dec 6, 2012Oct 21, 2014Seven Networks, Inc.System of redundantly clustered machines to provide failover mechanisms for mobile traffic management and network resource conservation
US8873411Jan 12, 2012Oct 28, 2014Seven Networks, Inc.Provisioning of e-mail settings for a mobile terminal
US8874761Mar 15, 2013Oct 28, 2014Seven Networks, Inc.Signaling optimization in a wireless network for traffic utilizing proprietary and non-proprietary protocols
US8886176Jul 22, 2011Nov 11, 2014Seven Networks, Inc.Mobile application traffic optimization
US8903820Jun 23, 2004Dec 2, 2014Nokia CorporationMethod, system and computer program to enable querying of resources in a certain context by definition of SIP even package
US8903954Nov 22, 2011Dec 2, 2014Seven Networks, Inc.Optimization of resource polling intervals to satisfy mobile device requests
US8909192Aug 11, 2011Dec 9, 2014Seven Networks, Inc.Mobile virtual network operator
US8909202Jan 7, 2013Dec 9, 2014Seven Networks, Inc.Detection and management of user interactions with foreground applications on a mobile device in distributed caching
US8909759Oct 12, 2009Dec 9, 2014Seven Networks, Inc.Bandwidth measurement
US8914002Aug 11, 2011Dec 16, 2014Seven Networks, Inc.System and method for providing a network service in a distributed fashion to a mobile device
US8918503Aug 28, 2012Dec 23, 2014Seven Networks, Inc.Optimization of mobile traffic directed to private networks and operator configurability thereof
US8964955 *Dec 1, 2010Feb 24, 2015Oracle International CorporationPresence-based message waiting indicator and missed calls
US8966066Oct 12, 2012Feb 24, 2015Seven Networks, Inc.Application and network-based long poll request detection and cacheability assessment therefor
US8977755Dec 6, 2012Mar 10, 2015Seven Networks, Inc.Mobile device and method to utilize the failover mechanism for fault tolerance provided for mobile traffic management and network/device resource conservation
US8984581Jul 11, 2012Mar 17, 2015Seven Networks, Inc.Monitoring mobile application activities for malicious traffic on a mobile device
US8989728Sep 7, 2006Mar 24, 2015Seven Networks, Inc.Connection architecture for a mobile network
US9002828Jan 2, 2009Apr 7, 2015Seven Networks, Inc.Predictive content delivery
US9009250Dec 7, 2012Apr 14, 2015Seven Networks, Inc.Flexible and dynamic integration schemas of a traffic management system with various network operators for network traffic alleviation
US9021021Dec 10, 2012Apr 28, 2015Seven Networks, Inc.Mobile network reporting and usage analytics system and method aggregated using a distributed traffic optimization system
US9032030Dec 28, 2007May 12, 2015SkypeDetection of communication states
US9043433May 25, 2011May 26, 2015Seven Networks, Inc.Mobile network traffic coordination across multiple applications
US9043491Feb 6, 2014May 26, 2015Apple Inc.Proximity detection for media proxies
US9043731Mar 30, 2011May 26, 2015Seven Networks, Inc.3D mobile user interface with configurable workspace management
US9047142Dec 16, 2010Jun 2, 2015Seven Networks, Inc.Intelligent rendering of information in a limited display environment
US9049179Jan 20, 2012Jun 2, 2015Seven Networks, Inc.Mobile network traffic coordination across multiple applications
US9055102Aug 2, 2010Jun 9, 2015Seven Networks, Inc.Location-based operations and messaging
US9060032May 9, 2012Jun 16, 2015Seven Networks, Inc.Selective data compression by a distributed traffic management system to reduce mobile data traffic and signaling traffic
US9065765Oct 8, 2013Jun 23, 2015Seven Networks, Inc.Proxy server associated with a mobile carrier for enhancing mobile traffic management in a mobile network
US9077630Jul 8, 2011Jul 7, 2015Seven Networks, Inc.Distributed implementation of dynamic wireless traffic policy
US9084105Apr 19, 2012Jul 14, 2015Seven Networks, Inc.Device resources sharing for network resource conservation
US9094258Aug 9, 2012Jul 28, 2015Oracle International CorporationMethod and apparatus for a multiplexed active data window in a near real-time business intelligence system
US9094508 *Nov 30, 2004Jul 28, 2015Avaya Inc.Methods and apparatus for determining a proxy presence of a user
US9100873Sep 14, 2012Aug 4, 2015Seven Networks, Inc.Mobile network background traffic data management
US9112881Dec 1, 2010Aug 18, 2015Oracle International CorporationPresence-based caller identification
US9118574Nov 26, 2003Aug 25, 2015RPX Clearinghouse, LLCPresence reporting using wireless messaging
US9131397Jun 6, 2013Sep 8, 2015Seven Networks, Inc.Managing cache to prevent overloading of a wireless network due to user activity
US9158897Nov 15, 2008Oct 13, 2015Adobe Systems IncorporatedMethods and systems for distributing right-protected asset
US9161258Mar 15, 2013Oct 13, 2015Seven Networks, LlcOptimized and selective management of policy deployment to mobile clients in a congested network to prevent further aggravation of network congestion
US9173128Mar 6, 2013Oct 27, 2015Seven Networks, LlcRadio-awareness of mobile device for sending server-side control signals using a wireless network optimized transport protocol
US9203864Feb 4, 2013Dec 1, 2015Seven Networks, LlcDynamic categorization of applications for network access in a mobile network
US9208123Dec 7, 2012Dec 8, 2015Seven Networks, LlcMobile device having content caching mechanisms integrated with a network operator for traffic alleviation in a wireless network and methods therefor
US9239800Jul 11, 2012Jan 19, 2016Seven Networks, LlcAutomatic generation and distribution of policy information regarding malicious mobile traffic in a wireless network
US9241038May 23, 2006Jan 19, 2016Microsoft Technology Licensing, LlcUser presence aggregation at a server
US9241314Mar 15, 2013Jan 19, 2016Seven Networks, LlcMobile device with application or context aware fast dormancy
US9251193Oct 28, 2007Feb 2, 2016Seven Networks, LlcExtending user relationships
US9258376 *Aug 4, 2009Feb 9, 2016At&T Intellectual Property I, L.P.Aggregated presence over user federated devices
US9271238Mar 15, 2013Feb 23, 2016Seven Networks, LlcApplication or context aware fast dormancy
US9275163Oct 17, 2011Mar 1, 2016Seven Networks, LlcRequest and response characteristics based adaptation of distributed caching in a mobile network
US9275375 *Jan 27, 2012Mar 1, 2016Microsoft Technology Licensing, LlcManaging rich presence collections in a single request
US9277443Dec 7, 2012Mar 1, 2016Seven Networks, LlcRadio-awareness of mobile device for sending server-side control signals using a wireless network optimized transport protocol
US9300719Jan 14, 2013Mar 29, 2016Seven Networks, Inc.System and method for a mobile device to use physical storage of another device for caching
US9307493Mar 15, 2013Apr 5, 2016Seven Networks, LlcSystems and methods for application management of mobile device radio state promotion and demotion
US9325662Jan 9, 2012Apr 26, 2016Seven Networks, LlcSystem and method for reduction of mobile network traffic used for domain name system (DNS) queries
US9326189Feb 4, 2013Apr 26, 2016Seven Networks, LlcUser as an end point for profiling and optimizing the delivery of content and data in a wireless network
US9330196Jun 14, 2012May 3, 2016Seven Networks, LlcWireless traffic management system cache optimization using http headers
US20020120699 *Nov 29, 2001Aug 29, 2002Matsushita Graphic Communication Systems, Inc.Monitoring apparatus and monitoring/notifying method for receiver and sender terminals and for e-mail transmission system of receiver terminal
US20040003037 *Jun 19, 2003Jan 1, 2004Fujitsu LimitedPresence administration method and device
US20040010573 *Jul 10, 2002Jan 15, 2004Philippe DebatyWeb presence for physical entities
US20040059781 *Sep 19, 2002Mar 25, 2004Nortel Networks LimitedDynamic presence indicators
US20040071150 *Jul 3, 2003Apr 15, 2004Anu HonkalaUpdating presence information
US20040128310 *Dec 30, 2002Jul 1, 2004Zmudzinski Krystof C.Method and apparatus for distributing notification among cooperating devices and device channels
US20040133641 *Jan 3, 2003Jul 8, 2004Nortel Networks LimitedDistributed services based on presence technology
US20040139198 *Jan 15, 2003Jul 15, 2004Jose Costa-RequenaMethod and apparatus for manipulating data with session initiation protocol
US20040153552 *Jan 29, 2003Aug 5, 2004Nokia CorporationAccess right control using access control alerts
US20040205161 *Apr 10, 2003Oct 14, 2004International Business Machines CorporationAuthorized access to off-line messaging
US20040215730 *Apr 10, 2003Oct 28, 2004International Business Machines CorporationTiming of off-line messaging
US20050004993 *Jul 1, 2003Jan 6, 2005Miller David MichaelInstant messaging object store
US20050015499 *May 15, 2003Jan 20, 2005Georg MayerMethod and apparatus for SIP user agent discovery of configuration server
US20050071428 *Sep 26, 2003Mar 31, 2005Khakoo Shabbir A.Method and apparatus for delivering an electronic mail message with an indication of the presence of the sender
US20050156873 *Jan 20, 2004Jul 21, 2005Microsoft CorporationCustom emoticons
US20050170861 *Jun 4, 2003Aug 4, 2005Aki NiemiMethod and system to subscription of events using sip protocol
US20050246339 *Aug 30, 2004Nov 3, 2005Fujitsu LimitedMethod and device for data retrieval, and computer product
US20050246369 *May 1, 2004Nov 3, 2005Microsoft CorporationSystem and method for a user interface directed to discovering and publishing presence information on a network
US20050246396 *May 1, 2004Nov 3, 2005Microsoft CorporationSystem and method for synchronizing between a file system and presence of contacts on a network
US20050246544 *May 1, 2004Nov 3, 2005Microsoft CorporationSystem and method for identity confirmation of a contact published on a network
US20050262198 *Oct 9, 2002Nov 24, 2005Nokia CorporationCommunication system
US20050289096 *Jun 23, 2004Dec 29, 2005Nokia CorporationMethod, system and computer program to enable SIP event-based discovery of services and content within a community built on context information
US20060047747 *Jun 24, 2004Mar 2, 2006Microsoft CorporationSystem and method for automatic selection of an instant messenger client
US20060047782 *Aug 30, 2004Mar 2, 2006Nokia CorporationPresence service
US20060112177 *Nov 24, 2004May 25, 2006Microsoft CorporationMethod and system for controlling access to presence information on a peer-to-peer basis
US20060117050 *Nov 30, 2004Jun 1, 2006Ajita JohnMethods and apparatus for determining a presence of a user
US20060155733 *Nov 30, 2004Jul 13, 2006Ajita JohnMethods and apparatus for determining a proxy presence of a user
US20060190525 *Jan 30, 2006Aug 24, 2006Microsoft CorporationMethod and system for supporting the communication of presence information regarding one or more telephony devices
US20060195532 *Feb 28, 2005Aug 31, 2006Microsoft CorporationClient-side presence documentation
US20060230137 *Apr 11, 2006Oct 12, 2006Christopher GareLocation or Activity Monitor
US20060234735 *Apr 18, 2006Oct 19, 2006Digate Charles JPresence-enabled mobile access
US20060239275 *Apr 21, 2005Oct 26, 2006Microsoft CorporationPeer-to-peer multicasting using multiple transport protocols
US20060239279 *Apr 22, 2005Oct 26, 2006Microsoft CorporationContact management in a serverless peer-to-peer system
US20060242237 *Apr 25, 2005Oct 26, 2006Microsoft CorporationSystem and method for collaboration with serverless presence
US20060242639 *Apr 25, 2005Oct 26, 2006Microsoft CorporationCollaborative invitation system and method
US20060271635 *May 27, 2005Nov 30, 2006Microsoft CorporationAccepting an invitation sent to multiple computer systems
US20070027702 *Jul 26, 2005Feb 1, 2007Microsoft CorporationOrganizing presence information into collections of publications
US20070027917 *Sep 16, 2005Feb 1, 2007Ido ArielLinking of personal information management data
US20070033278 *Aug 8, 2005Feb 8, 2007Kelley Sean SMethod and apparatus for providing a list-based service
US20070067439 *Sep 21, 2005Mar 22, 2007Andrew MasonSystem and method for providing presence age information in a unified communication system
US20070100831 *Mar 31, 2006May 3, 2007Microsoft CorporationManaging rich presence collections
US20070124158 *Mar 30, 2006May 31, 2007Fujitsu LimitedPresence managing method and apparatus
US20070124469 *Nov 29, 2005May 31, 2007Aziz MohammedCommon interest community service via presence messaging
US20070198589 *Feb 13, 2007Aug 23, 2007Avshalom HouriFlexibly configured presence server
US20070233875 *Mar 28, 2006Oct 4, 2007Microsoft CorporationAggregating user presence across multiple endpoints
US20070239866 *Mar 31, 2006Oct 11, 2007Microsoft CorporationManaging Rich Presence Collections
US20070239869 *Mar 28, 2006Oct 11, 2007Microsoft CorporationUser interface for user presence aggregated across multiple endpoints
US20070255577 *Apr 28, 2006Nov 1, 2007Microsoft CorporationUnified concept of presence
US20070266076 *Mar 31, 2006Nov 15, 2007Microsoft CorporationManaging rich presence collections
US20070271384 *Aug 2, 2007Nov 22, 2007Intel Corporation (A Delaware Corporation)Method and apparatus for distributing notification among cooperating devices and device channels
US20070276909 *Oct 5, 2006Nov 29, 2007Microsoft CorporationPublication of customized presence information
US20070276937 *May 23, 2006Nov 29, 2007Microsoft CorporationUser presence aggregation at a server
US20070288554 *Feb 6, 2007Dec 13, 2007The Pnc Financial Services Group, Inc.Network management
US20070288567 *Feb 6, 2007Dec 13, 2007The Pnc Financial ServicesNetwork management
US20070288852 *May 11, 2007Dec 13, 2007Aol LlcPresence and Geographic Location Notification Based on a Setting
US20070291859 *Jun 15, 2006Dec 20, 2007Oracle International CorporationPast presence hints
US20080010301 *Jul 25, 2007Jan 10, 2008Huawei Technologies Co., LtdMethod and system for notifying presence information
US20080040441 *Jul 5, 2006Feb 14, 2008Oracle International CorporationPush e-mail inferred network presence
US20080077696 *Sep 21, 2006Mar 27, 2008Bellsouth Intellectual Property CorporationPersonal presentity presence subsystem
US20080114776 *Jan 11, 2008May 15, 2008Huawei Technologies Co., Ltd.Method and system for providing presence information, the presence server thereof
US20080133708 *Oct 28, 2007Jun 5, 2008Billy AlvaradoContext Based Action
US20080134259 *Dec 11, 2007Jun 5, 2008Huawei Technologies Co., Ltd.Method, server and system for subscribing for presence information
US20080184136 *Mar 31, 2008Jul 31, 2008At&T Delaware Intellectual Property Inc.Caller Initiated Distinctive Presence Alerting and Auto-Response Messaging
US20080188358 *Feb 6, 2007Aug 7, 2008Hai-Pin KuoFoldable treadmill
US20080209051 *Apr 21, 2008Aug 28, 2008Microsoft CorporationTransport System for Instant Messaging
US20080209347 *May 5, 2008Aug 28, 2008At&T Delaware Intellectual Property, Inc., Formerly Known As Bellsouth Intellectual PropertyRedirection of a Message to an Alternate Address
US20090006613 *May 22, 2008Jan 1, 2009France TelecomSystem and a method for updating a user presence status on a terminal by aggregating multisource information
US20090138564 *Feb 9, 2007May 28, 2009Simon Alexander BeddusApparatus for and a method of delivering a message to a user
US20090172077 *Nov 23, 2006Jul 2, 2009David RoxburghApparatus for and a Method of Delivering a Message to a User
US20090177729 *Jan 9, 2008Jul 9, 2009International Business Machines CorporationManaging watcher information in a distributed server environment
US20090265280 *Oct 22, 2009Microsoft CorporationManaging real time meeting room status
US20090327494 *Dec 31, 2009International Business Machines CorporationCommon resource management in a server cluster
US20100115039 *Sep 11, 2009May 6, 2010Kim Yeo-JinCommunication system, communication server, communication terminal, and communication method for recommending communication tool
US20100205298 *Aug 12, 2010Nokia CorporationMethod, system and computer program to enable semantic mediation for SIP events through support of dynamically binding to and changing of application semantics of SIP events
US20100274881 *Oct 28, 2010Komlenic Todd MMethods and systems for network management using periodic status messages
US20110022580 *Jan 27, 2011Telefonaktiebolaget Lm Ericsson (Publ)Exchange of service capabilities in communication networks
US20110035443 *Aug 4, 2009Feb 10, 2011At&T Intellectual Property I, L.P.Aggregated Presence Over User Federated Devices
US20110141948 *Dec 1, 2010Jun 16, 2011Oracle International CorporationPresence-based caller identification
US20110142209 *Jun 16, 2011Oracle International CorporationPresence-based message waiting indicator and missed calls
US20110167152 *Jan 6, 2011Jul 7, 2011Adam Boyd RoachMethods, systems and computer readable media for providing session initiation protocol (sip) event watcher entity information in a communications network
US20110167172 *Jul 7, 2011Adam Boyd RoachMethods, systems and computer readable media for providing a failover measure using watcher information (winfo) architecture
US20110185006 *Jul 28, 2011Microsoft CorporationAggregating user presence across multiple endpoints
US20110214164 *Sep 1, 2011Nokia CorporationAccess right control using access control alerts
US20120131152 *Jan 27, 2012May 24, 2012Microsoft CorporationManaging rich presence collections in a single request
US20120221648 *Apr 9, 2009Aug 30, 2012Olivier BertinData processing system and method
US20120278115 *Apr 27, 2011Nov 1, 2012International Business Machines CorporationMethod and Apparatus for Leveraging Social Media for Pro-Active Customer Notification
US20140032483 *Nov 15, 2008Jan 30, 2014Adobe Systems IncorporatedAsset distribution architecture and timeline history
USRE45348Mar 16, 2012Jan 20, 2015Seven Networks, Inc.Method and apparatus for intercepting events in a communication system
EP1912394A1 *Oct 9, 2006Apr 16, 2008Hewlett-Packard Development Company, L.P.Management of access to address data
EP1976205A1 *Nov 27, 2006Oct 1, 2008Huawei Technologies Co., Ltd.A method, server and system for subscribing presence information
EP1995931A2May 22, 2008Nov 26, 2008France TelecomSystem and method for updating an attendance status of a user on a terminal by aggregation of multi-source information
EP2013764A1 *Jan 24, 2007Jan 14, 2009Microsoft CorporationManaging rich presence collections
EP2223502A4 *Dec 18, 2007Aug 26, 2015Ericsson Telefon Ab L MMethod and devices for updating presence information in a communication network
WO2007082445A1Nov 27, 2006Jul 26, 2007Huawei Technologies Co., Ltd.A method, server and system for subscribing presence information
WO2007114883A1 *Jan 25, 2007Oct 11, 2007Microsoft CorporationManaging rich presence collections
WO2007114884A1Jan 24, 2007Oct 11, 2007Microsoft CorporationManaging rich presence collections
WO2008043675A1 *Oct 1, 2007Apr 17, 2008Hewlett-Packard Development Company, L.P.Management of access to address data
WO2008117116A2 *Dec 24, 2007Oct 2, 2008Skype LimitedDetection of communication states
WO2008117116A3 *Dec 24, 2007Mar 12, 2009Skype LtdDetection of communication states
WO2011010276A1 *Jul 19, 2010Jan 27, 2011Telefonaktiebolaget Lm Ericsson (Publ)Exchange of service capabilities in communication networks
Classifications
U.S. Classification709/224, 709/225
International ClassificationG06Q10/10, H04L12/58, H04L29/08
Cooperative ClassificationH04L67/26, H04L67/24, G06Q10/107
European ClassificationG06Q10/107, H04L29/08N23
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Owner name: MICROSOFT TECHNOLOGY LICENSING, LLC, WASHINGTON
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