|Publication number||USRE41535 E1|
|Application number||US 11/446,601|
|Publication date||Aug 17, 2010|
|Priority date||Sep 30, 1999|
|Also published as||CA2386108A1, EP1219119A1, US6335968, US6748067, US20020041663, WO2001026389A1|
|Publication number||11446601, 446601, US RE41535 E1, US RE41535E1, US-E1-RE41535, USRE41535 E1, USRE41535E1|
|Inventors||Dale W. Malik|
|Original Assignee||Malik Dale W|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (8), Classifications (35), Legal Events (5)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This application is a continuation of U.S. patent application Ser. No. 09/409,686 filed Sep. 30, 1999, now U.S. Pat. No. 6,335,968, issued Jan. 1, 2002, which is herein incorporated by reference in its entirety.
1. Field of the Invention
The present invention relates generally to telecommunications systems. More particularly, the present invention relates to an advanced intelligent network system for Internet service provision on a per-use basis. The present invention also provides pre-paid Internet service connections.
2. Background of the Invention
Over the last ten years, use of the Internet has grown rapidly. A large segment of this growth stems from an increase in individual dial-up subscribers. These dial-up subscribers use the public switched telephone network (“PSTN”) to establish connections to their Internet Service providers (“ISPs”). In many cases, individual subscribers are required to enter into long-term contractual agreements when they sign up for Internet service. Such long-term agreements are generally required to reduce the ISP's overhead in creating accounts and billing subscribers. However, many subscribers find such long term agreements undesirable.
Strong competition exists among the many ISPs in the marketplace for acquiring new customers and for retaining existing customers. Subscribers entering the market for ISP services may prefer trying out different ISPs before making a long term commitment to the service. Thus, rather than entering into a long-term agreement with a single ISP, such new customers may desire a system providing access to multiple ISPs on a pre-paid or pay-per-use basis. Similarly, for privacy or security reasons, subscribers may prefer the option of using several different ISPs on a recurring basis. Under the conventional systems and methods for accessing an ISP, a user would have to subscribe to many services, thereby incurring multiple monthly fees to achieve this result. Again, these subscribers may prefer a system providing access to multiple ISPs on a pre-paid or pay-per-use basis.
One reason such pre-paid or pay-per-use services are not readily available in conventional ISP systems and methods is that the overhead for tracking and billing customers outweighs the benefits of catering to the needs of these customers. Additionally, some ISPs may view such short term arrangements as cutting into their customer base without providing the financial returns to justify the cost. It is commonly known in the art that tracking and billing systems are complex and expensive to operate. To accurately bill customers for units used requires a complex infrastructure of hardware, software and personnel resources. If the monthly bill per subscriber is a low dollar amount, then bill collection procedures may not be cost-effective without additional leverage to encourage payment. For these and similar reasons, ISPs have been reluctant to provide pre-paid or pay-per-use Internet access services. Thus, there remains a need for a system that provides access to multiple ISPs on a pre-paid or pay-per-use basis and does not increase the ISP's overhead.
In conventional ISP systems, the PSTN is used merely to connect the caller to the ISP. The PSTN does not verify the caller and does not track the caller's usage of the ISP's resources.
PRI lines 21 lead to ISP 20 where they are connected to multi-line hunt group (“MLHG”) 22 as shown in FIG. 1. MLHG 22 is modem pool allowing multiple simultaneous connections and is controlled by access server 23. MLHG 22 takes incoming subscriber calls and routes them to the first open modem in the modem pool. When a caller dials the telephone access number for ISP 20, from the PSTN's point of view, the call is processed like any other call in PSTN 10. That is, the call is routed between the caller and called party (in this case, ISP 20) through one or more switches. If ISP 20's lines are all busy, or “off-hook”, i.e., there are no voice communications paths available, the caller gets a busy-signal, which is provided by the PSTN. On the other hand, if lines are available, switch 12 will terminate the call to ISP 20 and it is ISP 20's responsibility to answer the call, verify the caller's authorization for access to ISP 20, and setup the caller's connection to the Internet.
From ISP 20's point of view, several intervening steps must be accomplished before granting the caller access to the Internet. When a call reaches ISP 20 via PRI lines 21 and MLHG 22, access server 23 answers the call. After answering the call, access server 23 must determine whether or not the caller should be granted access and if so, to which services. Access server 23 queries the caller for information such as a username and password for use in identifying the caller and the caller's authorized services. The dialog between the caller and access server 23 is usually performed automatically between access server 23 and communications software operating on the caller's computer 31.
Generally, ISPs use centralized servers to store and manage its subscriber databases. Remote Authentication Dial-In User Service (“RADIUS”) server 24, having database 24a, shown in
The conventional system and methods described above pose a further obstacle to providing pre-paid Internet services. As noted above, typically every ISP subscriber is assigned a unique username and password. Typically, the subscriber may change the password, but the username remains fixed to ensure it is unique. The combination of username and password allows for verification to ensure the user has permission (i.e., is an authorized customer) to use ISP 20's services. Pre-paid telecommunications services are desirable in one respect because of the inherent anonymity that may be gained. However, under the current systems and methods, ISPs generally demand some means to track the usage of their resources to a specific account for billing purposes.
The present invention is a system and method for providing subscribers with pre-paid and pay-per-use access to multiple Internet Service providers (“ISPs”). The present invention utilizes an Advanced Intelligent Network (“AIN”) to set up and manage the services as described below. AIN systems are described in U.S. Pat. Nos. 5,701,301 and 5,744,533, which are incorporated herein by reference in their entirety.
The present invention is implemented as an AIN service application. At least one telephone access number assigned to each ISP is provisioned with a suitable AIN trigger on the terminating switch. When a user, presumably using a computer and modem, calls a telephone access number having the trigger, the call is temporarily suspended while a database query is processed. The database query is sent from a Service Switching point (“SSP” or “switch”) to a Service Control point (“SCP”), which checks to see whether the caller has blocked access to the pay-per-use service, or has an unknown number.
In a preferred embodiment, if the call is not from a blocked or unknown number, the SCP checks to see if the caller has a pre-paid subscription. If so, the SCP then checks to see whether the caller has some pre-paid units available. In one embodiment, the call is processed as a regular non-pre-paid and non-pay-per-use call if the caller is pre-paid but has no remaining pre-paid units. In an alternative embodiment the call is still processed as a pay-per-use call even when a pre-paid caller has no pre-paid units left.
In a preferred embodiment, blocked or unknown numbers are not processed by the pre-paid or pay-per-use Internet service. Instead, calls from blocked or unknown numbers are terminated by the ISP's switch without any changes to the call parameters. In this case, the caller must have a valid account with the ISP in order to access the Internet through that ISP. Furthermore, billing for caller's use of the ISP's services are handled by the ISP, not by the telephone network.
If the caller is a pre-paid or a pay-per-use customer, the SCP changes certain call parameters in the call setup message, as described below, and instructs the SSP to continue processing the call with the new parameters. The SCP further instructs the SSP to inform the SCP if the line was busy, answered or the caller hung up before the call was answered. Additionally, if the call was answered, the SSP notifies the SCP when the call is disconnected. The SCP uses this information to track the subscriber's usage of the system for billing purposes. If the caller was pre-paid, the SCP subtracts the number of units used from the pre-paid units available for the subscriber. If the caller was processed under the pay-per-use system, the charge is calculated by the telephone service provider and included in the caller's telephone bill for the period. Billing techniques for such pay-per-use telephone connections are well known in the art of telephone service providers.
Authentication of pre-paid and pay-per-user callers is still performed by the ISP's RADIUS server, as described above. However, in the present invention, the SCP generates a transaction identification (“ID”) that serves as a pseudo username and password. The transaction ID is a ten digit number chosen specifically to be an invalid telephone number. The SCP inserts the transaction ID into the calling party number (“CgPN”) field when the SCP instructs the SSP to proceed with call setup. Because such an invalid telephone number can only be placed in the CgPN field by the telephone service provider, the ISP will identify the caller as being billed through the telephone system and not the ISP. When a pre-paid or pay-per-use call is terminated to the ISP's multi-line hunt group, the RADIUS server authorizes connection to the ISP's services because the CgPN is recognized as a transaction ID generated by the SCP.
It is an object of the present invention to provide Internet access to subscribers on a pre-paid basis as well as on a pay-per-use basis.
It is a further object of the present invention to use an Advanced Intelligent Network to provide and manage Internet access to subscribers on a pre-paid basis as well as on a pay-per-use basis.
It is another object of the present invention to provide Internet access to subscribers on a pre-paid basis as well as on a pay-per-use basis without prohibitively increasing overhead for Internet Service Providers.
It is an object of the present invention to provide an integrated bill to subscribers obtaining access to multiple Internet Service Providers on a pre-paid basis and a pay-per-use basis.
These and other objects of the present invention are described in greater detail in the detailed description of the invention, the appended drawings and the attached claims.
The present invention utilizes an Advanced Intelligent Network (“AIN”) to provide a system and method for allowing individual users to access multiple Internet Service Providers (“ISPs”) on a pre-paid or pay-per-use basis. Users of the present invention gain access to the ISPs using dial-up telephone connections.
Billing services in a preferred embodiment are accomplished using the standard records commonly used in telephone billing systems. Telephone billing systems and records used in AIN systems are described in U.S. Pat. No. 5,774,533, referenced above. Billing records are created by the pay-per-use system of the present invention and are periodically transferred, in aggregate form, to billing system 28. Records are transferred from SCP 13 through Service Management System (“SMS”) 29 to billing system 28 via interconnects 27a and 27b. Interconnects 27a and 27b may use any suitable data transmission protocol, such as TCP/IP. In a preferred embodiment, interconnects 27a and 27b employ the X.25 protocol. SMS 29 and billing system 28 have databases 29a and 28a, respectively. SMS 29 is used to manage and synchronize service applications and databases within telephone network 10. Billing system 28 is used to generate customer bills on a periodic (usually monthly) basis.
In addition to the AIN components,
At least one telephone access number assigned to each ISP is provisioned with a suitable AIN trigger. In a preferred embodiment, a public Office Dialing plan (“PODP”) trigger is utilized. As is well known in the art, a PODP trigger can be provisioned on either end of the call. That is, the trigger may be on the originating switch or on the terminating switch. When a user, presumably using a computer and modem, calls a telephone access number having the PODP trigger, the call is temporarily suspended while a database query is processed. The database query is issued by the switch where the PODP trigger is actually provisioned, e.g., the terminating switch.
Examples 1 and 2 below each describe a specific implementation of the present invention. However, the present invention may be implemented using many variations of the sequences described in Examples 1 and 2.
As shown in
In the preferred embodiment shown in
In step 130, SCP 13 determines the type of call, i.e., whether or not the call is from an unknown or blocked telephone number, or if the call will be billed on prepaid or pay-per-use basis. SCP 13 looks up the CgPN in database 13a to make this determination. In a preferred embodiment, database 13a comprises the line information database (“LIDB”), which is well known in the art. If the number is blocked or unknown, SCP 13 moves on to step 140, described below. If call is from a line having pre-paid access to the Internet service SCP 13 moves on to step 150. Otherwise, if SCP 13 determines the call should be billed as a pay-per-use Internet call, SCP 13 moves on to step 160.
Step 140 is performed if the call is from an unknown number, or a blocked telephone line or if SCP 13 determines in step 150 that a pre-paid subscriber has no remaining pre-paid units. In step 140, SCP 13 issues a Continue message to SSP 12 (response 3 in FIG. 2). The Continue message contains no changes in the call setup parameters, i.e., the CgPN is still set to 222-444-3000. SSP 12 then terminates the call to MLHG 22 and ISP 20 takes over responsibility for authenticating the user, i.e., ISP 20's RADIUS server 24 treats the call as a call from an ordinary customer. This is possible because RADIUS server 24 is programmed to check the CgPN to determine if the call is to be treated as a pre-authorized call, i.e., authorized through the telephone service provider. If RADIUS server 24 determines that the call is not pre-authorized, it waits for a valid username and password from caller 40 before allowing access to ISP 20's resources. In a preferred embodiment, when step 140 is executed, it is the last step performed by the present invention.
In step 140, SCP 13 optionally issues a Send_to_Resource message and SSP 12 plays an announcement to caller 40 before terminating the call. The announcement informs caller 40 that pre-paid and pay-per-use Internet service is not currently available from caller 40's telephone line. In an alternate embodiment, rather than terminating the call to ISP 20, SSP 12 plays an announcement then disconnects the call.
For pre-paid Internet calls, SCP 13 checks the number of pre-paid units available for caller 40's account (step 150). The pre-paid units may correspond to the number of minutes allowed, or the number of times the system has been accessed, or some other method for quantifying usage of the pre-paid Internet service. If pre-paid units are available, SCP 13 moves on to step 160, described below. If pre-paid units are not available, SCP 13 proceeds to step 140 where the call is processed as a regular call (i.e., not pre-paid and not pay-per-use call) as described above. SCP 13 may optionally play an announcement informing caller 40 that no pre-paid units are available, before proceeding to step 140.
If caller 40 has remaining pre-paid units, SCP 13 sends a Continue and Termination_Notification messages in response 3 to SSP 12 (step 160). The Continue message instructs SSP 12 to proceed with the call setup between caller 40 and ISP 20's telephone access number. However, SCP 13 inserts a transaction ID in the CgPN field before issuing the Continue message. As discussed earlier, the transaction ID is a number that cannot represent a true telephone number. The presence of this “erroneous” telephone number in the CgPN field informs RADIUS server 24 that the call is pre-authorized for access to ISP 20's resources.
In a preferred embodiment, the transaction ID is formed by replacing the area code of the calling party number with “111.” The area code may be encoded so that the last 2 digits represent the time remaining on the pre-paid account. Other encodings are also possible. Thus in the present example, the new CgPN is set to 111-333-3000, while the CdPN remains unchanged. Under the current telephone networking protocols, “111” is not a valid area code. Of course, the transaction ID could be any other string that notifies RADIUS server 24 that caller 40 will be billing through the telephone network and should be granted access to the Internet without further authentication. The Termination_Notification message instructs SSP 12 to alert SCP 13 if the line is busy, answered or not answered, and if the call was answered, when that call is eventually disconnected. This allows SCP 13 to track the usage of the Internet service by caller 40.
In step 180, SSP 12 terminates the call to ISP 20 over pRI lines 21 and informs SCP 13 when the call is answered by access server 23. In the present example, access server 23 is programmed transmit the calling party number to RADIUS server 24. In step 185, RADIUS server 24 checks the CgPN received from access server 23 and authorizes access to ISP 20's services if the special code has been appended to a portion of the CgPN. If the CgPN does not contain the special code, RADIUS server 24 treats the call as a normal call to ISP 20. In that case, RADIUS server 24 waits for caller 40 to transmit a username and password as previously described.
In step 190, SSP 12 notifies SCP 13 when the call is disconnected. In step 200, SCP 13 again determines the type of caller so that caller 40 can be correctly billed for the call. If caller 40 is a pre-paid user of the service, then SCP 13 subtracts the number of units used in from the subscriber's pre-paid units stored in database 13a (step 210). If caller 40 is a pay-per-use user of the service, then SCP 13 generates a billing record for the caller 40's telephone number (step 220). Billing records are transferred at regular intervals, preferably once per day, between SCP 13 and SMS 29 and billing system 28. Billing system 28 generates a monthly bill for caller 40, including all charges for the units used in the pay-per-use Internet service.
This example uses many of the same steps as Example I. However, in this example, SCP 13 sends a message to RADIUS server 24 informing RADIUS server 24 of caller 40's transaction ID. This allows enhanced security of the system because RADIUS server 24 can verify the transaction ID prior to granting access to ISP 20's resources. As shown in
In new step 175, SCP 13 transmits the transaction ID to RADIUS server 24. This message is transmitted via gateway server 16 through the Internet to RADIUS server 24. After the call is connected in step 180, RADIUS server 24 checks all incoming calls to see if the CgPN of the incoming call matches the transaction ID in new step 182. In new step 184, if the CgPN matches the transaction ID, RADIUS server 24 moves on to steps 185 through 220, as described in Example I above. Otherwise, if the CgPN does not match the transaction ID, RADIUS server 24 moves on to step 140, and treats the call as a normal call to ISP 20, as described above.
The foregoing disclosure of embodiments of the present invention has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many variations and modifications of the embodiments described herein will be obvious to one of ordinary skill in the art in light of the above disclosure. The scope of the invention is to be defined only by the claims appended hereto, and by their equivalents.
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|U.S. Classification||379/114.2, 379/114.28|
|International Classification||G06Q20/14, G06Q20/16, G06Q20/28, H04Q3/00, G07F17/16, H04M17/00, H04M15/00|
|Cooperative Classification||H04Q2213/13345, H04M15/90, H04M2215/22, G06Q20/14, H04M2215/016, H04M2215/202, H04M17/00, H04M2215/0196, G06Q20/16, G06Q20/28, H04Q3/0029, H04M15/51, H04M15/68, H04M2215/54, G07F17/16, H04M15/56|
|European Classification||G06Q20/14, G06Q20/16, G06Q20/28, H04M15/90, H04M15/68, H04M15/56, H04M15/51, G07F17/16, H04Q3/00D3, H04M17/00|
|Dec 30, 2010||AS||Assignment|
Owner name: JASPER WIRELESS LLC, NEVADA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BELLSOUTH INTELLECTUAL PROPERTY CORPORATION;REEL/FRAME:025565/0190
Effective date: 20050127
|Feb 15, 2011||CC||Certificate of correction|
|Sep 23, 2011||FPAY||Fee payment|
Year of fee payment: 8
|Oct 23, 2015||AS||Assignment|
Owner name: XYLON LLC, NEVADA
Free format text: MERGER;ASSIGNOR:JASPER WIRELESS LLC;REEL/FRAME:036942/0445
Effective date: 20150813
|Nov 24, 2015||FPAY||Fee payment|
Year of fee payment: 12