WO2001052488A1 - Interfacing a pstn and an internet - Google Patents
Interfacing a pstn and an internet Download PDFInfo
- Publication number
- WO2001052488A1 WO2001052488A1 PCT/US2000/031998 US0031998W WO0152488A1 WO 2001052488 A1 WO2001052488 A1 WO 2001052488A1 US 0031998 W US0031998 W US 0031998W WO 0152488 A1 WO0152488 A1 WO 0152488A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- network
- pstn
- voice
- messages
- devices connected
- Prior art date
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
- H04M7/0075—Details of addressing, directories or routing tables
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/12—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
- H04M7/1205—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
- H04M7/1245—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks where a network other than PSTN/ISDN interconnects two PSTN/ISDN networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
- H04L12/283—Processing of data at an internetworking point of a home automation network
- H04L12/2834—Switching of information between an external network and a home network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
- H04L51/56—Unified messaging, e.g. interactions between e-mail, instant messaging or converged IP messaging [CPM]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/102—Gateways
- H04L65/1023—Media gateways
- H04L65/103—Media gateways in the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/102—Gateways
- H04L65/1033—Signalling gateways
- H04L65/104—Signalling gateways in the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/12—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
- H04M7/1205—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
- H04M7/125—Details of gateway equipment
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K999/00—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS dummy group
- H05K999/99—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS dummy group dummy group
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
- H04M2201/60—Medium conversion
Definitions
- the present invention relates generally to improvements in voice communication systems and more particularly pertains a new and improved method and apparatus for interfacing a public switch telephone network (PSTN) with an Internet Protocol (IP) network to provide real-time voice communication and messaging services over the two networks.
- PSTN public switch telephone network
- IP Internet Protocol
- Voice communication over Internet Protocol networks has been accomplished by using computers with sound cards to communicate with other computers with sound cards connected to the IP network through a service provider. Such devices have been unsatisfactory in that the PSTN is excluded from the communication loop.
- PSTN public switch telephone network
- the analog wave form is sampled, it is converted into a discrete digital form, as
- a standard telephone form of PCM uses 8 bits for the code and a logarithm compression method that assigns more bits to lower amplitude signals.
- a standard transmission rate of 64K bits per second is used for one channel of telephone digital communication.
- the two basic variations of 64K bps PCM are mu-log and a-log. Both methods are similar in that they both use logarithmic compression to achieve 12-13 bits of linear PCM quality with 8 bits. They differ in relatively minor compression details. North America uses mu-log modulation.
- ADPCM adaptive differential pulse-code modulation
- CODECs wave form coder-decoders
- Propagation delay is caused by the speed of light in a fiber
- Handling delay is caused by devices that handle the voice information along the voice path.
- the speed of light in a vacuum is 186,000 miles per second. Electrons travel 100,000 miles per second in copper.
- a fiber network half way around the world (13,000 miles) only induces a one way delay of about 70 milliseconds. Such a delay is almost imperceptible to the human ear. But these propagation delays in combination with handling delays can cause noticeable speech degradation.
- Handling delays become a large issue in packetized environments, which are utilized in Internet Protocol networks.
- a typical packetizer such as made by Cisco Systems, for example, generates a speech frame every 10 milliseconds. Two of these speech frames are then placed into one packet and a real-time transport protocol header is then attached to the packet.
- Echo is normally caused by mismatch in impedance between the 4-wire network switch conversion to a 2-wire local loop. Although hearing your own voice in the receiver is common and reassuring to a speaker, hearing your own voice in a receiver longer then 2.5 milliseconds will cause interruptions and breaks in the conversation. As a result, echo in the standard PSTN is controlled with echo cancelers and a tight control on impedance mismatches at the common reflection points. In packet based networks, echo cancelers are built into the low bit rate CODECs.
- in-band and out of band signaling methods are used in today's telecommunication networks.
- a common method of in-band signaling is the use of single or multi-frequency tones.
- a common method of out of band signaling is integrated services digital network (ISDN) which used the D channel for call set up. Out of band signaling is what it says. It uses a separate channel for signaling outside the voice band.
- ISDN integrated services digital network
- the T.30 protocol describes the formatting of
- non-page data such as messages that are used for capabilities and negotiation.
- T.4 protocol describes formatting of page image data.
- the fax machines synchronize their transmissions end to end and negotiate page by page.
- the T.30 protocol engines are de-coupled and demodulated, allowing for delays inherent in the network.
- H.323 is utilized for transmitting multimedia (voice, video, and date) across a local area network which can be an IP network or a network of any other protocol.
- H.323 describes H.323 terminals, H.323 MCUs, H.323 gateways, and H.323 gatekeepers.
- An H.323 gatekeeper for example, performs address translation, admission control, bandwidth management and zone management.
- An H.323 gateway provides a gate between an IP protocol network and the PSTN as well as any other H.320 terminals, V.70 terminal, H.324 terminal, and any other speech terminals.
- the H.323 protocol is used for audio, video and data applications and system control.
- Packet voice applications readily lend themselves to transmitting voice over IP networks, thus presenting a fundamental change in the PSTN approach of offering telephony services.
- One of the main reasons packet telephony has been gaining interest is the cost saving available.
- a voice over IP network permits toll bypass which allows the customers to replace their tie lines that currently hook up their PBX to PBX networks, and route their voice calls across their existing data structure utilizing the IP network.
- the global Internet system 13 is an Internet Protocol (IP) network.
- IP Internet Protocol
- a subscriber typically contracts with a commercial access or service provider, obtains an Internet address and the capability to thereby send and receive e-mail by way of the IP network, and perform other functions supported by the IP network.
- the subscriber typically uses a personal computer and modem to contact the service provider over a public switched telephone network or any other convenient communication link such as cable or DSP line.
- the subscriber may communicate with any other subscribers connected to the network, which subscribers may be located in a host of different countries.
- Local PSTN networks 15 and 17 exist throughout the United States and throughout the world. These networks are administered by local and long distance telephone companies. Access to the local PSTN networks 15 and 17 is also by contract between a subscriber and the PSTN and the local telephone company operating the PSTN. Typically the local PSTNs are connected over long distance trunks 18, which may consist of anything from wire lines and optical fiber to wireless satellite links.
- a typical PSTN 15 would interconnect a plurality of phones 39, 27 by wireline connections 47 and 31 respectively, a plurality of faxes 41 by wireline connections 49, and perhaps a wireless communication network 29 by way of trunk lines 33.
- the wireless communication network 29 would communicate with a plurality of cell phones 35 and pagers 37 over wireless links 43 and 45.
- a local PSTN 17 for example, besides connecting standard telephone sets 93 over wire lines 97 and faxes 91 over wire lines 95 may connect to private branch exchange (PBX) units 71 over trunk lines 73.
- PBX private branch exchange
- the private branch exchange 71 is typically located at a business sight. It would connect a plurality of telephone units 75, 77 and 79 over wire lines 81, 83 and 89 to the local PSTN 17.
- the IP network 13 is designed for interconnecting computers for communication purposes. Access to the IP network 13 is through a service provider. A typical subscriber like computer 59 for example, would connect to the IP network 13 over a connecting link 61 which may consist of a modem and local telephone line, a digital cable or other means commonly available. The computer subscriber 59 typically pays a monthly access fee to the service provider. Communication between the subscribers to the IP network is usually by e-mail.
- Computers with multimedia capability and a voice packetizing program such as Netmeeting for example which is a software program available on the Internet at no charge can communicate with other computers having multi-media and net media capability by voice signaling.
- computer 63 which has multimedia capability and Netmeeting software could take the voice signals from a phone 65 which is connected by a wireline 67 to computer 63, packetize it into a digital format and transmit it over the modem or cable or DSP line 69 to the IP network 13 where it would be distributed to Computer 59, for example, and broken down in computer 59 to a voice message.
- This system only provides voice communication over the IP network between devices connected to the IP network 13.
- the general purpose of this invention is to provide a system that permits real- time voice communication between devices connected to an Internet Protocol (IP) network and devices connected to a public switched telephone network (PSTN) and provide a variety of communication services desired by a subscriber to the system.
- IP Internet Protocol
- PSTN public switched telephone network
- the present invention utilizes a computer controlled Class 5 switch connected to the PSTN, and gate interface circuitry connected to the switch and the IP network.
- the gate interface circuitry interfaces the digital data packets of the IP network with the voice circuits of the PSTN and performs address translation, admission control, bandwidth management and zone management between the IP
- the system allows computers with multi-media software, or telephones with IP network interface circuits connected to the IP network to have real-time voice communication with telephones connected to the PSTN, and vice versa.
- the system provides message services with the additional feature of converting received voice messages to e-mail messages, converting received facsimile messages to e-mail messages, and converting received e-mail messages to voice messages.
- the system can receive an incoming call either from the IP network or the PSTN and simultaneously route the call to a plurality of predesignated destinations, which are modifiable by the subscriber. These destinations may be on the IP network, on the PSTN, or on both the IP network and the PSTN. Additional features such as caller identification are also provided. All these features, and others not mentioned here, are possible as the result of the invention, which seamlessly merges the IP network and PSTN for voice communication. BRIEF DESCRIPTION OF THE DRAWINGS
- Figure 1 is a block diagram schematic of the system of the present invention being utilized to integrate a PSTN and IP network.
- Figure 2 is a block diagram illustration of the preferred system for interfacing a PSTN and JP network according to the present invention.
- the present invention in order to provide communication between devices connected to the IP network 13 and devices connected to local PSTN networks 15 and 17 provides an interface network 19 which connects a local PSTN networkl5 and the JP network 13 by a PSTN link 25 and an JP link 23.
- Central communication network 19 is capable of directing calls to and from units connected to the PSTN 15 by way of the JP network 13 to any units connected to the JP network 13 throughout the world.
- Central communication network 21 may be located in another country, servicing subscribers in that country by connecting its local PSTN network 17 over PSTN links 24 to the JP network 13 over JP links 22.
- Subscribers to the services provided by the central communication networks 19 and 21 would contract with the company administering the central communication network, and obtain a telephone number as well as an IP address if the subscriber did not already have one.
- a subscriber to the central communication network would then be able to make calls real-time over the IP network 13, anywhere in the world to any units connected to the JP network and any units connected to the PSTN networks 15 and 17.
- a subscriber to the central communication network has the ability to send and receive messages, send and receive facsimile messages over the JP network to any destination anywhere in the world attached to the JP network or attached to a PSTN network.
- a subscriber to the central communication network receives special services such as the "follow me” service.
- This service allows a subscriber to receive incoming calls simultaneously at a plurality of numbers pre-programmed into the system which could for example be a base phone number 39, a cell phone 35, pager 37 and a computer 59, located anywhere in the world. If the computer 59 is
- the call is received in real-time as a voice signal. If the computer is not connected, the central communication network provides for the storing of messages that may them be retrieved as voice messages or e-mail messages.
- e-mail messages that are received over the IP network may be converted to speech format, allowing the subscriber to listen to his e-mail messages rather then read them.
- the subscriber may also send voice e-mail messages to units connected to the JP network.
- the central communication network has as its' backbone a circuit switch 101 which is capable of Class 5 switching of PSTN lines such as T-l lines 115 or T-l or DS3 lines 25, for example. Manufactures such as Priority Call Management Inc., Excell Inc. and Magellan Inc., make switches that are capable of performing this function.
- the switch is controlled by a computer control 109 which directs its operation over control lines 119 in a manner that is well know in the art.
- the T-l or DS3 lines 25 of switch 101 are connected to the local PSTN network.
- the other T-l lines 115 are connected to a gateway 105 which converts packetized digital voice data to PSTN format digital voice to be provided to the switch 101 over T-l lines 115, and vice versa.
- the gateway 105 takes PSTN digital
- the gatekeeper 103 typically performs addresses translation, admission control, bandwidth management and zone management functions.
- Gateway Equipment to perform the functions of the gateway 105 and the gatekeeper 103 are available from manufacturers such as Cisco Systems, Inc., which manufactures the Cisco 2600 and Cisco 3600, for example.
- a voice response unit 107 is connected between the gateway 105 by lines 113 and the switch 101, by lines 117. Voice response unit 107 takes the depacketized voice signal received at the gateway 105 and converts it to digital tones for use by the switch 101.
- a unified message system 123 consists of axomputer controlled message unit that is connected to the switch 101 by lines 121 and the JP network 13 by lines 122. Unified messaging platforms that would be suitable for use in the invention are readily available on the market.
- the unified message system is set up to take voice messages and facsimile messages from the switch 101 and convert them to e-mail messages which can then be transmitted over lines 122 to the IP network 13.
- the unified message system can take e-mail messages from the JP network 13 and convert them to voice messages that are then sent through switch 101 to the PSTN network over trunks 25 to a PSTN phone or by T-l lines 115 to the IP network 13 to a computer on the JP network capable of receiving voice messages, or to a phone 53 connected to the IP network by a gateway 51.
- a subscriber to the central communication network can send e-mails to other subscribers who have their e-mail addresses stored in the unified message system 123 simply by keying in the name of the subscriber.
- a subscriber can send e-mails to non-subscribers 27 by keying in the e-mail address.
- the unified message system 123 will receive the keyed in tones and convert them to digital date over the IP network 13.
- a subscriber to the central communication network 19 has stored in a computer control 109 for switch 101 a plurality of destination addresses which comprise telephone numbers for units hooked up to the PSTN network, such as a base phone number, a cell phone number, pager number, fax number and IP addresses for a computer hooked to the IP network 13.
- a plurality of destination addresses which comprise telephone numbers for units hooked up to the PSTN network, such as a base phone number, a cell phone number, pager number, fax number and IP addresses for a computer hooked to the IP network 13.
- an incoming call over the PSTN network 15, for example, to the central communication network 19 would be simultaneously routed by switch 101 to all the pre-stored numbers for the subscriber.
- an incoming call could be routed to the subscriber's computer 59, which is connected to the JP network 13, to the subscriber's base phone 39, to the subscriber's cell phone 35, and to the subscriber's pager 37 at the same time.
- unified message system 123 takes the message for later deliver in
- the central communication network After routing an incoming call to the subscriber's various destinations, the central communication network provides for a caller identification which tells the receiving subscriber the name of the caller. This allows the subscriber to decide whether the call will be picked up or not. If the call is picked up, real-time communication is established. If the call is not picked up, the unified message systems 123 takes a message for later retrieval by the subscriber as desired.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU20453/01A AU2045301A (en) | 2000-01-07 | 2000-11-21 | Interfacing a pstn and an internet |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/479,736 US7068668B2 (en) | 2000-01-07 | 2000-01-07 | Method and apparatus for interfacing a public switched telephone network and an internet protocol network for multi-media communication |
US09/479,736 | 2000-01-07 |
Publications (1)
Publication Number | Publication Date |
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WO2001052488A1 true WO2001052488A1 (en) | 2001-07-19 |
Family
ID=23905206
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2000/031998 WO2001052488A1 (en) | 2000-01-07 | 2000-11-21 | Interfacing a pstn and an internet |
Country Status (3)
Country | Link |
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US (7) | US7068668B2 (en) |
AU (1) | AU2045301A (en) |
WO (1) | WO2001052488A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002037777A1 (en) * | 2000-11-02 | 2002-05-10 | Bb-Tech Pty Limited | Method and apparatus enabling standard voice telephone to initiate and receive voice telephone calls on telephone line occupied with dial-up internet connection |
US6842621B2 (en) | 2001-12-21 | 2005-01-11 | Motorola, Inc. | Method and apparatus for splitting control and media content from a cellular network connection |
US7194639B2 (en) | 2003-06-30 | 2007-03-20 | Tellabs Vienna, Inc. | Power adapter and broadband line extender system and method |
Families Citing this family (62)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6389010B1 (en) * | 1995-10-05 | 2002-05-14 | Intermec Ip Corp. | Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones |
US6480510B1 (en) | 1998-07-28 | 2002-11-12 | Serconet Ltd. | Local area network of serial intelligent cells |
US7068668B2 (en) | 2000-01-07 | 2006-06-27 | Feuer Donald S | Method and apparatus for interfacing a public switched telephone network and an internet protocol network for multi-media communication |
US6549616B1 (en) | 2000-03-20 | 2003-04-15 | Serconet Ltd. | Telephone outlet for implementing a local area network over telephone lines and a local area network using such outlets |
IL135744A (en) | 2000-04-18 | 2008-08-07 | Mosaid Technologies Inc | Telephone communication system over a single telephone line |
US7961712B2 (en) * | 2000-05-08 | 2011-06-14 | Broadcom Corporation | System and method for supporting multiple voice channels |
JP2002044123A (en) * | 2000-07-25 | 2002-02-08 | Nec Corp | Integrated messaging system |
DE10047658A1 (en) * | 2000-09-26 | 2002-05-29 | Siemens Ag | Method for controlling a data conversion during the transition of a connection between a packet-switched and a circuit-switched communication network |
US6785264B1 (en) * | 2000-10-18 | 2004-08-31 | Tollbridge Technologies | Method and apparatus for inter-working line side signaling between circuit, packet and circuit packet networks |
US7415029B1 (en) * | 2000-12-22 | 2008-08-19 | Cisco Technology, Inc. | Programmable FSM engine using a new CAS application language |
US6862341B2 (en) * | 2001-04-13 | 2005-03-01 | Intel Corporation | Device and method of interfacing voice data between a switch and a computer system |
IL144158A (en) | 2001-07-05 | 2011-06-30 | Mosaid Technologies Inc | Outlet for connecting an analog telephone set to a digital data network carrying voice signals in digital form |
US7630359B1 (en) * | 2001-09-28 | 2009-12-08 | At&T Corp. | Technique for providing translation between the packet environment and the PSTN environment |
US7436842B2 (en) | 2001-10-11 | 2008-10-14 | Serconet Ltd. | Outlet with analog signal adapter, a method for use thereof and a network using said outlet |
JP3746713B2 (en) * | 2001-12-28 | 2006-02-15 | 株式会社日立製作所 | Internet telephone system and information processing apparatus |
US20030185204A1 (en) * | 2002-04-01 | 2003-10-02 | Murdock Scott D. | Data communication system combining pay telephone and wireless access technologies |
US7376415B2 (en) * | 2002-07-12 | 2008-05-20 | Language Line Services, Inc. | System and method for offering portable language interpretation services |
IL154921A (en) | 2003-03-13 | 2011-02-28 | Mosaid Technologies Inc | Telephone system having multiple distinct sources and accessories therefor |
IL159838A0 (en) | 2004-01-13 | 2004-06-20 | Yehuda Binder | Information device |
US20060018449A1 (en) * | 2004-07-20 | 2006-01-26 | Qwest Communications International Inc. | Telephone call routing |
US8184793B2 (en) | 2004-07-20 | 2012-05-22 | Qwest Communications International Inc. | Multi-line telephone calling |
US20060018448A1 (en) * | 2004-07-20 | 2006-01-26 | Qwest Communications International Inc. | Routing telephone calls via a data network |
US20060018310A1 (en) * | 2004-07-20 | 2006-01-26 | Qwest Communications International Inc. | Data network call routing |
US7873058B2 (en) | 2004-11-08 | 2011-01-18 | Mosaid Technologies Incorporated | Outlet with analog signal adapter, a method for use thereof and a network using said outlet |
US20060116111A1 (en) * | 2004-12-01 | 2006-06-01 | Klicpera Michael E | Cell or mobile phone voice mail or message method of transfer |
US8059793B2 (en) * | 2005-02-07 | 2011-11-15 | Avaya Inc. | System and method for voicemail privacy |
US8233594B2 (en) * | 2005-02-07 | 2012-07-31 | Avaya Inc. | Caching message information in an integrated communication system |
US7321655B2 (en) * | 2005-02-07 | 2008-01-22 | Adomo, Inc. | Caching user information in an integrated communication system |
US8559605B2 (en) * | 2005-02-07 | 2013-10-15 | Avaya Inc. | Extensible diagnostic tool |
US7330537B2 (en) * | 2005-02-07 | 2008-02-12 | Adomo, Inc. | Integrating messaging server directory service with a communication system voice mail message interface |
US8175233B2 (en) * | 2005-02-07 | 2012-05-08 | Avaya Inc. | Distributed cache system |
US7733848B2 (en) * | 2005-05-25 | 2010-06-08 | Audiocodes Ltd. | Signal-type dependent real-time fax relay |
US8023626B2 (en) * | 2005-09-13 | 2011-09-20 | Language Line Services, Inc. | System and method for providing language interpretation |
US7792276B2 (en) * | 2005-09-13 | 2010-09-07 | Language Line Services, Inc. | Language interpretation call transferring in a telecommunications network |
US7894596B2 (en) * | 2005-09-13 | 2011-02-22 | Language Line Services, Inc. | Systems and methods for providing language interpretation |
US20070171898A1 (en) * | 2005-11-29 | 2007-07-26 | Salva Paul D | System and method for establishing universal real time protocol bridging |
FR2895622A1 (en) * | 2005-12-27 | 2007-06-29 | France Telecom | Home gateway device for e.g. home equipment, has conversion unit comprising application program interfaces and interfunctioning software layer that allows interfunctioning between two voice over Internet protocol telephony services |
JP4548346B2 (en) * | 2006-01-13 | 2010-09-22 | 沖電気工業株式会社 | Information provision system |
US20070183407A1 (en) * | 2006-02-07 | 2007-08-09 | Broadcom Corporation, A California Corporation | Auxiliary bridging device supporting multiple pathway telephony bridging |
US20070183412A1 (en) * | 2006-02-07 | 2007-08-09 | Broadcom Corporation, A California Corporation | Facsimile servicing via peer-to-peer internet protocol telephony network |
US20070239625A1 (en) * | 2006-04-05 | 2007-10-11 | Language Line Services, Inc. | System and method for providing access to language interpretation |
US7593523B2 (en) * | 2006-04-24 | 2009-09-22 | Language Line Services, Inc. | System and method for providing incoming call distribution |
US7773738B2 (en) * | 2006-09-22 | 2010-08-10 | Language Line Services, Inc. | Systems and methods for providing relayed language interpretation |
CA3045683C (en) | 2006-11-02 | 2021-10-26 | Voip-Pal.Com, Inc. | Producing routing messages for voice over ip communications |
WO2008064481A1 (en) | 2006-11-29 | 2008-06-05 | Digifonica (International) Limited | Intercepting voice over ip communications and other data communications |
US8064576B2 (en) * | 2007-02-21 | 2011-11-22 | Avaya Inc. | Voicemail filtering and transcription |
US8160212B2 (en) * | 2007-02-21 | 2012-04-17 | Avaya Inc. | Voicemail filtering and transcription |
US8107598B2 (en) * | 2007-02-21 | 2012-01-31 | Avaya Inc. | Voicemail filtering and transcription |
WO2008116296A1 (en) | 2007-03-26 | 2008-10-02 | Digifonica (International) Limited | Emergency assistance calling for voice over ip communications systems |
US8488751B2 (en) * | 2007-05-11 | 2013-07-16 | Avaya Inc. | Unified messenging system and method |
US8068588B2 (en) * | 2007-06-26 | 2011-11-29 | Microsoft Corporation | Unified rules for voice and messaging |
US8230024B2 (en) * | 2007-06-28 | 2012-07-24 | Microsoft Corporation | Delegating instant messaging sessions |
US8630234B2 (en) | 2008-07-28 | 2014-01-14 | Digifonica (International) Limited | Mobile gateway |
US8385232B1 (en) | 2008-09-29 | 2013-02-26 | Cellco Partnership | Flexible alerting for integrated cellular and VoIP |
CA2812174C (en) | 2009-09-17 | 2018-05-15 | Digifonica (International) Limited | Uninterrupted transmission of internet protocol transmissions during endpoint changes |
US8644485B1 (en) | 2009-11-11 | 2014-02-04 | Ringcentral, Inc. | Intelligent softswitch for managing a call |
JP6128802B2 (en) * | 2012-11-07 | 2017-05-17 | キヤノン株式会社 | Facsimile apparatus and control method and program thereof |
US9667770B2 (en) | 2013-07-17 | 2017-05-30 | Flypsi, Inc. | Telephone network system and method |
EP3167604B1 (en) * | 2014-12-14 | 2021-06-30 | SZ DJI Technology Co., Ltd. | Methods and systems of video processing |
US10341253B2 (en) | 2016-09-19 | 2019-07-02 | Accenture Global Solutions Limited | Automatic consolidation of network resources |
US11171905B1 (en) | 2016-10-17 | 2021-11-09 | Open Invention Network Llc | Request and delivery of additional data |
WO2019199262A2 (en) * | 2018-04-12 | 2019-10-17 | Rft Arastirma Sanayi Ve Ticaret Anonim Sirketi | Real time digital voice communication method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5867495A (en) * | 1996-11-18 | 1999-02-02 | Mci Communications Corporations | System, method and article of manufacture for communications utilizing calling, plans in a hybrid network |
US6069890A (en) * | 1996-06-26 | 2000-05-30 | Bell Atlantic Network Services, Inc. | Internet telephone service |
Family Cites Families (58)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5726984A (en) * | 1989-01-31 | 1998-03-10 | Norand Corporation | Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones |
US5737395A (en) | 1991-10-28 | 1998-04-07 | Centigram Communications Corporation | System and method for integrating voice, facsimile and electronic mail data through a personal computer |
US6633561B2 (en) * | 1994-05-05 | 2003-10-14 | Sprint Communications Company, L.P. | Method, system and apparatus for telecommunications control |
US5991301A (en) * | 1994-05-05 | 1999-11-23 | Sprint Communications Co. L.P. | Broadband telecommunications system |
JPH10500542A (en) * | 1994-05-05 | 1998-01-13 | スプリント コミュニケーションズ カンパニー,エル.ピー. | Method, system (system) and device for telecommunication control |
US5742905A (en) * | 1994-09-19 | 1998-04-21 | Bell Communications Research, Inc. | Personal communications internetworking |
CA2139081C (en) | 1994-12-23 | 1999-02-02 | Alastair Gordon | Unified messaging system and method |
US6108704A (en) * | 1995-09-25 | 2000-08-22 | Netspeak Corporation | Point-to-point internet protocol |
FI955093A0 (en) | 1995-10-25 | 1995-10-25 | Finland Telecom Oy | Datornaetelettelefonsystem och foerfarande Foer styrning av det |
US6243373B1 (en) * | 1995-11-01 | 2001-06-05 | Telecom Internet Ltd. | Method and apparatus for implementing a computer network/internet telephone system |
IL115967A (en) * | 1995-11-12 | 1999-05-09 | Phonet Communication Ltd | Network based distributed pbx system |
AU2975497A (en) | 1996-06-11 | 1998-01-07 | Vdonet Corporation Ltd. | Ip name resolution system |
WO1998007266A1 (en) * | 1996-08-14 | 1998-02-19 | Northern Telecom Limited | Internet-based telephone call manager |
US6011794A (en) | 1996-09-09 | 2000-01-04 | Netplus Communications Corp. | Internet based telephone apparatus and method |
US6243398B1 (en) | 1996-10-21 | 2001-06-05 | Vocaltec Communications Ltd. | System and method for personal multimedia communication over a packet switched network |
US6335927B1 (en) * | 1996-11-18 | 2002-01-01 | Mci Communications Corporation | System and method for providing requested quality of service in a hybrid network |
US5999518A (en) * | 1996-12-04 | 1999-12-07 | Alcatel Usa Sourcing, L.P. | Distributed telecommunications switching system and method |
US6731625B1 (en) * | 1997-02-10 | 2004-05-04 | Mci Communications Corporation | System, method and article of manufacture for a call back architecture in a hybrid network with support for internet telephony |
US6683870B1 (en) | 1997-02-10 | 2004-01-27 | Mci Communications Corporation | Method and system for multicasting call notifications |
US6215790B1 (en) | 1997-03-06 | 2001-04-10 | Bell Atlantic Network Services, Inc. | Automatic called party locator over internet with provisioning |
US6137869A (en) * | 1997-09-16 | 2000-10-24 | Bell Atlantic Network Services, Inc. | Network session management |
US6104711A (en) * | 1997-03-06 | 2000-08-15 | Bell Atlantic Network Services, Inc. | Enhanced internet domain name server |
US6445694B1 (en) | 1997-03-07 | 2002-09-03 | Robert Swartz | Internet controlled telephone system |
US6721306B1 (en) * | 1997-03-11 | 2004-04-13 | Verizon Services Corp. | Public wireless/cordless internet gateway |
US6546005B1 (en) * | 1997-03-25 | 2003-04-08 | At&T Corp. | Active user registry |
US6614783B1 (en) * | 1997-04-01 | 2003-09-02 | Cosmocom, Inc. | Multimedia telecommunication automatic call distribution system using internet/PSTN call routing |
US6141339A (en) * | 1997-04-04 | 2000-10-31 | Sprint Communications Company, L.P. | Telecommunications system |
US5991282A (en) | 1997-05-28 | 1999-11-23 | Telefonaktiebolaget Lm Ericsson | Radio communication system with diversity reception on a time-slot by time-slot basis |
WO1999005590A2 (en) * | 1997-07-25 | 1999-02-04 | Starvox, Inc. | Apparatus and method for integrated voice gateway |
US6243376B1 (en) | 1997-08-13 | 2001-06-05 | Mediaring.Com Ltd. | Method and apparatus for making a phone call connection over the internet connection |
US6185288B1 (en) * | 1997-12-18 | 2001-02-06 | Nortel Networks Limited | Multimedia call signalling system and method |
US6278707B1 (en) * | 1998-01-07 | 2001-08-21 | Mci Communications Corporation | Platform for coupling a circuit-switched network to a data network |
US6711160B2 (en) | 1998-03-31 | 2004-03-23 | International Business Machines Corporation | Packet network telephone interface system for POTS |
US6075784A (en) * | 1998-06-08 | 2000-06-13 | Jetstream Communications, Inc. | System and method for communicating voice and data over a local packet network |
US6597688B2 (en) * | 1998-06-12 | 2003-07-22 | J2 Global Communications, Inc. | Scalable architecture for transmission of messages over a network |
US6754224B1 (en) | 1998-06-24 | 2004-06-22 | Cisco Technology, Inc. | Method and apparatus for multicast call signaling in packet network |
US6259691B1 (en) * | 1998-07-24 | 2001-07-10 | 3Com Corporation | System and method for efficiently transporting dual-tone multi-frequency/multiple frequency (DTMF/MF) tones in a telephone connection on a network-based telephone system |
US6141341A (en) * | 1998-09-09 | 2000-10-31 | Motorola, Inc. | Voice over internet protocol telephone system and method |
US6298062B1 (en) * | 1998-10-23 | 2001-10-02 | Verizon Laboratories Inc. | System providing integrated services over a computer network |
US7116656B1 (en) | 1998-10-23 | 2006-10-03 | Verizon Laboratories Inc. | Multi-line appearance telephony via a computer network |
US6128304A (en) * | 1998-10-23 | 2000-10-03 | Gte Laboratories Incorporated | Network presence for a communications system operating over a computer network |
US6466548B1 (en) * | 1998-10-28 | 2002-10-15 | Cisco Technology, Inc. | Hop by hop quality of service measurement system |
US6614781B1 (en) * | 1998-11-20 | 2003-09-02 | Level 3 Communications, Inc. | Voice over data telecommunications network architecture |
US6161008A (en) | 1998-11-23 | 2000-12-12 | Nortel Networks Limited | Personal mobility and communication termination for users operating in a plurality of heterogeneous networks |
US6449269B1 (en) | 1998-12-31 | 2002-09-10 | Nortel Networks Limited | Packet voice telephony system and method |
US6411704B1 (en) * | 1999-02-18 | 2002-06-25 | Ameritech Corporation | System and method for providing telephony services to remote subscribers |
WO2000054485A1 (en) * | 1999-03-06 | 2000-09-14 | Dti Networks, Inc. | System and method for administrating call and call feature set-up in a telecommunications network |
US6707810B1 (en) * | 1999-06-04 | 2004-03-16 | Alcatel | System and method for establishing a direct call path for routing a signal to a data network using a digital loop carrier |
US6404746B1 (en) * | 1999-07-13 | 2002-06-11 | Intervoice Limited Partnership | System and method for packet network media redirection |
US7212518B2 (en) * | 1999-07-14 | 2007-05-01 | Ericsson Inc. | Combining narrowband applications with broadband transport |
US6798772B2 (en) * | 1999-09-07 | 2004-09-28 | Nortel Network Limited | Method for public access to private phone numbers and other telephonic peripherals using a caller access code |
US6661785B1 (en) * | 1999-10-12 | 2003-12-09 | Bellsouth Intellectual Property Corporation | Method and apparatus for providing internet call waiting with voice over internet protocol |
US6798767B1 (en) | 1999-11-16 | 2004-09-28 | Cisco Technology, Inc. | System and method for generating multiple line appearances in a communication network |
US20010024436A1 (en) * | 1999-12-17 | 2001-09-27 | Keith Barraclough | Voice-over IP audio-data terminal processor |
US6826173B1 (en) * | 1999-12-30 | 2004-11-30 | At&T Corp. | Enhanced subscriber IP alerting |
US7120139B1 (en) * | 1999-12-30 | 2006-10-10 | At&T Corp. | Broadband cable telephony network architecture IP ITN network architecture reference model |
US6252952B1 (en) * | 1999-12-30 | 2001-06-26 | At&T Corp | Personal user network (closed user network) PUN/CUN |
US7068668B2 (en) | 2000-01-07 | 2006-06-27 | Feuer Donald S | Method and apparatus for interfacing a public switched telephone network and an internet protocol network for multi-media communication |
-
2000
- 2000-01-07 US US09/479,736 patent/US7068668B2/en not_active Expired - Lifetime
- 2000-11-21 WO PCT/US2000/031998 patent/WO2001052488A1/en active Application Filing
- 2000-11-21 AU AU20453/01A patent/AU2045301A/en not_active Abandoned
-
2006
- 2006-05-03 US US11/381,417 patent/US7486667B2/en not_active Expired - Lifetime
-
2009
- 2009-01-26 US US12/360,028 patent/US8125982B2/en not_active Expired - Fee Related
-
2012
- 2012-01-18 US US13/353,129 patent/US8724643B2/en not_active Expired - Fee Related
-
2014
- 2014-03-27 US US14/227,810 patent/US9774745B2/en not_active Expired - Fee Related
-
2017
- 2017-08-30 US US15/691,456 patent/US10063710B2/en not_active Expired - Fee Related
-
2018
- 2018-07-26 US US16/046,911 patent/US10375249B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6069890A (en) * | 1996-06-26 | 2000-05-30 | Bell Atlantic Network Services, Inc. | Internet telephone service |
US5867495A (en) * | 1996-11-18 | 1999-02-02 | Mci Communications Corporations | System, method and article of manufacture for communications utilizing calling, plans in a hybrid network |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002037777A1 (en) * | 2000-11-02 | 2002-05-10 | Bb-Tech Pty Limited | Method and apparatus enabling standard voice telephone to initiate and receive voice telephone calls on telephone line occupied with dial-up internet connection |
US6842621B2 (en) | 2001-12-21 | 2005-01-11 | Motorola, Inc. | Method and apparatus for splitting control and media content from a cellular network connection |
US7194639B2 (en) | 2003-06-30 | 2007-03-20 | Tellabs Vienna, Inc. | Power adapter and broadband line extender system and method |
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US9774745B2 (en) | 2017-09-26 |
US20140211789A1 (en) | 2014-07-31 |
US7068668B2 (en) | 2006-06-27 |
US10375249B2 (en) | 2019-08-06 |
US20120113981A1 (en) | 2012-05-10 |
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US20170366677A1 (en) | 2017-12-21 |
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US10063710B2 (en) | 2018-08-28 |
US20060251056A1 (en) | 2006-11-09 |
US8724643B2 (en) | 2014-05-13 |
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