Centralized management and allocation of bridges in a telecommunications network for a meet-me conferencing service

• US 5,812,652 A
• Filed: 09/30/1996
• Issued: 09/22/1998
• Est. Priority Date: 12/26/1995
• Status: Expired due to Term

• Current Assignee: RPX Clearinghouse LLC (RPX Corporation)
• Original Assignee: Northern Telecom Limited (Nortel Networks Corporation)
• Inventors: Meubus, Charles, Belzile, Pierre, Pilkington, Joanne, Jodoin, Sylvain
• Primary Examiner(s): Matar, Ahmad F.
• Assistant Examiner(s): Wolinsky, Scott
• Application Number:
  US08/723,080
• Time in Patent Office: 722 Days
• Field of Search: 379/202, 379/203, 379/204, 379/205, 379/206, 379/207, 379/188, 379/196, 379/197, 379/198, 379/219, 379/220, 379/221, 379/242, 379/243, 370/260, 370/261, 370/262
• US Class Current: 379/205.01
• CPC Class Codes: H04M 2203/5054 Meet-me conference, i.e. participants dial-in
• CPC Class Codes: H04M 3/56 Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities video conference systems H04N7/15
• CPC Class Codes: H04M 3/562 where the conference facilities are distributed
• CPC Class Codes: H04Q 2213/1324 Conference call
• CPC Class Codes: H04Q 2213/13515 authentication, authorisation - fraud prevention
• CPC Class Codes: H04Q 3/0029 Provisions for intelligent networking

Abstract

The invention manifests a secure, on-demand meet-me conferencing service embodied within a telephone network having an advanced intelligent network (AIN) infrastructure. Centralized control of conferencing bridges located in network switches is effected at a service control point (SCP) in the AIN telephone network. Routing and availability information with respect to the conferencing bridges is maintained by the SCP. When the SCP in communication with a network switch processing a call determines that the call is to initiate a conference, a bridge is allocated to the call. The availability information of the bridge is then updated and the SCP provides the network switch with routing instructions for connecting the call through the telephone network to the bridge.

Claims

1. In a telecommunications network including a plurality of switching systems, one or more of which having one or more conference bridges, a method of effecting a conferencing service comprising the steps of:

maintaining routing and availability information with respect to the one or more conference bridges, wherein a bridge that is not allocated to a call is available;

determining by a service controller, in communication with one of the switching systems processing an initiating call, that the initiating call is to initiate a conference;

allocating a particular bridges which the availability information indicates is available, to the initiating call;

updating the availability information associated with the particular bridge to indicate that the particular bridge is allocated to the initiating call; and

providing by the service controller, to the switching system processing the initiating call, instructions for routing the initiating call based on the routing information associated with the particular bridge, whereby the initiating call is connected through the network to the particular bridge.

2. A method as claimed in claim 1, comprising:

determining by the service controller, in communication with one of the switching systems processing another call, that the another call is to join the conference initiated by the initiating call;

identifying, from the availability information, the particular bridge allocated to the initiating call; and

providing by the service controller, to the switching system processing the another call, instructions for routing the another call based on the routing information associated with the particular bridge, whereby the another call is connected through the network to the particular bridge.

3. A method as claimed in claim 2, wherein the instructions for routing the initiating call include a first directory number, whereby when the initiating call is connected to the first directory number the initiating call has control over conference initiation at the particular bridge.

4. A method as claimed in claim 3, wherein the instructions for routing the another call include a second directory number, whereby when the another call is connected to the second directory number the another call joins the conference at the particular bridge.

5. A method as claimed in claim 2, wherein the step of determining by the service controller that the initiating call is to initiate the conference includes receiving from the initiating call an input primary code, and correlating the input primary code to a predetermined primary authorization code whereby the service controller recognizes the initiating call as being a request for conference initiation;

and the step of updating the availability information includes maintaining, by the service controller, a correlation between the particular bridge and the primary authorization code.

6. A method as claimed in claim 5, wherein the step of determining the another call is to join the conference includes receiving from the another call an input secondary code, and correlating the input secondary code to a predetermined secondary authorization code which is paired with the primary authorization code;

and the step of identifying the particular bridge includes correlating the primary authorization code, being paired with that secondary authorization code, to the particular bridge.

7. A method as claimed in claim 6, wherein the primary authorization code and the secondary authorization code are the same code.

8. A method as claimed in claim 6, comprising receiving from a first call which occurs prior to the initiating call and the another call, credit or calling card information;

and providing to the first call, responsive to validating the received card information, the paired primary and secondary authorization codes.

9. A method as claimed in claim 6, comprising receiving from a switching system processing a first call which occurs prior to the initiating call and the another call, an identification of the first call;

providing the paired primary and secondary authorization codes to the first call responsive to validating the received identification; and

maintaining an association between the first call identification and the paired codes.

10. A method as claimed in claim 9, wherein the identification of the first call is an automatic number identification (ANI) provided by the switching system processing the first call.

11. A method as claimed in claim 9, wherein the identification of the first call is a calling line identification (CLID) provided by the switching system processing the first call.

12. A method as claimed in claim 2, wherein the another call includes a plurality of calls initiated by respective conference participants.

13. A method as claimed in claim 12, wherein the telecommunications network includes an intelligent network and the service controller is effected at a service control point in the intelligent network.

14. A method as claimed in claim 13, wherein the switching system that processes the initiating call and the switching system that processes the another call are one or more service switching points in the intelligent network.

15. A method as claimed in claim 2, wherein the instructions for routing the initiating call and the instructions for routing the another call include routing the respective calls to a single directory number associated with the particular bridge.

16. A method as claimed in claim 1, comprising:

providing by the switching system that processes the initiating call, to the service controller, a signal indicating that the initiating call connection to the particular bridge has terminated; and

updating the availability information associated with the particular bridge to indicate that the particular bridge is available.

17. A method as claimed in claim 1, comprising:

recording, by the service controller, a first start time corresponding to the initiating call connection to the particular bridge;

providing by the switching system that processes the initiating call, to the service controller, an initiating call terminated signal indicating that the initiating call connection to the particular bridge has terminated; and

responsive to receiving the initiating call terminated signal, updating the availability Information associated with the particular bridge to indicate that the particular bridge is available and recording a first stop time with respect to the initialing call.

18. A method as claimed in claim 17, comprising:

recording, by the service controller, a second start time corresponding to the another call connection to the particular bridge;

providing by the switching system that processes the another call, to the service controller, an another call terminated signal indicating that the another call connection to the particular bridge has terminated; and

recording, responsive to receiving the another call terminated signal, a second stop time with respect to the another call.

19. In a telecommunications network including a plurality of switching systems, one or more of which having one or more conference bridges, a system for effecting a conferencing service comprising:

means for maintaining routing and availability information with respect to the one or more conference bridges, wherein a bridge that is not allocated to a call is available;

means for determining by a service controller, in communication with one of the switching systems processing an initiating call, that the initiating call is to initiate a conference;

means for allocating a particular bridge, which the availability information indicates is available, to the initiating call;

means for updating the availability information associated with the particular bridge to indicate that the particular bridge is allocated to the initiating call; and

means for providing by the service controller, to the switching system processing the initiating call, instructions for routing the initiating call based on the routing information associated with the particular bridge, whereby the initiating call is connected through the network to the particular bridge.

20. A system as claimed in claim 19, comprising:

means for determining by the service controller, in communication with one of the switching systems processing another call, that the another call is to join the conference initiated by the initiating call;

means for identifying, from the availability information, the particular bridge allocated to the initiating call; and

means for providing by the service controller, to the switching system processing the another call, instructions for routing the another call based on the routing information associated with the particular bridge, whereby the another call is connected through the network to the particular bridge.

21. A system as claimed in claim 20, wherein the instructions for routing the initiating call include a first directory number, whereby when the initiating call is connected to the first directory number the initiating call has control over conference initiation at the particular bridge.

22. A system as claimed in claim 21, wherein the instructions for routing the another call include a second directory number, whereby when the another call is connected to the second directory number the another call joins the conference at the particular bridge.

23. A system as claimed in claim 20, wherein the means for determining by the service controller that the initiating call is to initiate the conference includes means for receiving from the initiating call an input primary code, and means for correlating the input primary code to a predetermined primary authorization code whereby the service controller recognizes the initiating call as being a request for conference initiation;

and the means for updating the availability information includes means for maintaining, by the service controller, a correlation between the particular bridge and the primary authorization code.

24. A system as claimed in claim 23, wherein the means for determining the another call is to join the conference includes means for receiving from the another call an input secondary code, and means for correlating the input secondary code to a predetermined secondary authorization code which is paired with the primary authorization code;

and the means for identifying the particular bridge includes means for correlating the primary authorization code, being paired with that secondary authorization code, to the particular bridge.

25. A system as claimed in claim 24, comprising means for receiving from a first call which occurs prior to the initiating call and the another call, credit or calling card information;

and means for providing to the first call, responsive to validating the received card information, the paired primary and secondary authorization codes.

26. A system as claimed in claim 24, comprising means for receiving from a switching system processing a first call which occurs prior to the initiating call and the another call, an identification of the first call;

means for providing the paired primary and secondary authorization codes to the first call responsive to validating the received identification; and

means for maintaining an association between the first call identification and the paired codes.

27. A system as claimed in claim 26, wherein the identification of the first call is an automatic number identification (ANI) provided by the switching system processing the first call.

28. A system as claimed in claim 26, wherein the identification of the first call is a calling line identification (CLID) provided by the switching system processing the first call.

29. A system as claimed in claim 20, wherein the another call includes a plurality of calls initiated by respective conference participants.

30. A system as claimed in claim 29, wherein the telecommunications network includes an intelligent network and the service controller is effected at a service control point in the intelligent network.

31. A system as claimed in claim 30, wherein the switching system that processes the initiating call and the switching system that processes the another call are one or more service switching points in the intelligent network.

32. A system as claimed in claim 20, wherein the instructions for routing the initiating call and the instructions for routing the another call include routing the respective calls to a single directory number associated with the particular bridge.

33. A system as claimed in claim 20, wherein the primary authorization code and the secondary authorization code are the same code.

34. A system as claimed in claim 19, comprising:

means for providing by the switching system that processes the initiating call, to the service controller, a signal indicating that the initiating call connection to the particular bridge has terminated; and

means for updating the availability information associated with the particular bridge to indicate that the particular bridge is available.

35. A system as claimed in claim 19, comprising:

means for recording, by the service controller, a first start time corresponding to the initiating call connection to the particular bridge;

means for providing by switching system that processes the initiating call, to the service controller, an initiating cell terminated signal indicating that the initiating call connection to the particular bridge has terminated; and

means, responsive to receiving the initiating call terminated signal, for updating the availability information associated with the particular bridge to indicate that the particular bridge is available and for recording a first stop time with respect to the initiating call.

36. A system as claimed in claim 35, comprising:

means for recording, by the service controller, a second start time corresponding to the another call connection to the particular bridge;

means for providing by the switching system that processes the another call, to the service controller, an another call terminated signal indicating that the another call connection to the particular bridge has terminated; and

means for recording, responsive to receiving the another call terminated signal, a second stop time with respect to the another call.

37. In a telecommunications network including a plurality of switching systems, one or more of which having one or more conference bridges, a method of effecting a conferencing service comprising the steps of:

receiving from a switching system processing a first call an identification of the first call;

providing a primary authorization code paired with a secondary authorization code to the first call responsive to validating the received identification;

maintaining an association between the first call identification and the paired primary and secondary authorization codes;

maintaining routing and availability information with respect to the one or more conference bridges, wherein a bridge that is not allocated to a call is available;

determining by a service controller, in communication with one of the switching systems processing an initiating call, that the initiating call is a request for conference initiation, wherein an input primary code is received from the initiating call and correlated to the primary authorization code;

allocating a particular bridge, which the availability information indicates is available, to the initiating call;

updating the availability information associated with the particular bridge to indicate that the particular bridge is allocated to the initiating call, wherein the service controller maintains a correlation between the particular bridge and the primary authorization code;

providing by the service controller, to the switching system processing the initiating call, instructions for routing the initiating call based on the routing information associated with the particular bridge, whereby the initiating call is connected through the network to the particular bridge;

determining by the service controller, in communication with one of the switching systems processing another call, that the another call is to join the conference initiated by the initiating call, wherein an input secondary code is received from the another call and correlated to the secondary authorization code which is paired with the primary authorization code;

identifying, from the availability information, the particular bridge allocated to the initiating call, wherein the primary authorization code, being paired with the secondary authorization code, is correlated to the particular bridge; and

providing by the service controller, to the switching system processing the another call, instructions for routing the another call based on the routing information associated with the particular bridge, whereby the another call is connected through the network to the particular bridge.

38. A method as claimed in claim 37, wherein the identification of the first call is an automatic number identification (ANI) provided by the switching system processing the first call.

39. A method as claimed in claim 38, wherein the identification of the first call is a calling line identification (CLID) provided by the switching system processing the first call.

40. In a telecommunications network including a plurality of switching systems, one or more of which having one or more conference bridges, a method of effecting a conferencing service comprising the steps of:

maintaining routing and availability information with respect to the one or more conference bridges, wherein a bridge that is not allocated to a call is available;

determining by a service controller, in communication with one of the switching systems processing an initiating call, that the initiating call is to initiate a conference;

allocating a particular bridge, which the availability Information indicates is available, to the initiating call;

updating the availability information associated with the particular bridge to indicate that the particular bridge is allocated to the initiating call;

providing by the service controller, to the switching system processing the initiating call, instructions for routing the initiating call based on the routing information associated with the particular bridge, whereby the initiating call is connected through the network to the particular bridge;

providing by the switching system that processes the initiating call, to the service controller, a signal indicating that the initiating call connection to the particular bridge has terminated; and

updating the availability information associated with the particular bridge to indicate that the particular bridge is available.

41. In a telecommunications network including a plurality of switching systems, one or more of which having one or more conference bridges, a method of effecting a conferencing service comprising the steps of:

maintaining routing and availability information with respect to the one or more conference bridges, wherein a bridge that is not allocated to a call is available;

determining by a service controller, in communication with one of the switching systems processing an initiating call, that the initiating call is to initiate a conference;

allocating a particular bridge, which the availability information indicates is available, to the initiating call;

updating the availability information associated with the particular bridge to indicate that the particular bridge is allocated to the initiating call;

providing by the service controller, to the switching system processing the initiating call, instructions for routing the initiating call based on the routing information associated with the particular bridge, whereby the initiating call is connected through the network to the particular bridge;

recording, by the service controller, a first start time corresponding to the initiating call connection to the particular bridge;

providing by the switching system that processes the initiating call, to the service controller, an initiating call terminated signal indicating that the initiating call connection to the particular bridge has terminated; and

responsive to receiving the initiating call terminated signal, updating the availability information associated with the particular bridge to indicate that the particular bridge is available and recording a first stop time with respect to the initiating call.

42. A method as claimed in claim 41, comprising;

recording, by the service controller, a second start time corresponding to the another call connection to the particular bridge;

providing by the switching system that processes the another call, to the service controller, an another call terminated signal indicating that the another call connection to the particular bridge has terminated; and

providing by the service controller, to the switching system processing the another call, instructions for routing the another call based on the routing information associated with the particular bridge, whereby the another call is connected through the network to the particular bridge.

43. In a telecommunications network including a plurality of switching systems, one or more of which having one or more conference bridges, a system for effecting a conferencing service comprising:

means for receiving from a switching system processing a first call an identification of the first call;

means for providing a primary authorization code paired with a secondary authorization code to the first call responsive to validating the received identification;

means for maintaining an association between the first call identification and the paired primary and secondary authorization codes;

means for maintaining routing and availability information with respect to the one or more conference bridges, wherein a bridge that is not allocated to a call is available;

means for determining by a service controller, in communication with one of the switching systems processing an initiating call, that the initiating call is a request for conference initiation, wherein an input primary code is received from the initiating call and correlated to the primary authorization code;

means for allocating a particular bridge, which the availability information indicates is available, to the initiating call;

means for updating the availability information associated with the particular bridge to indicate that the particular bridge is allocated to the initiating call, wherein the service controller maintains a correlation between the particular bridge and the primary authorization code;

means for providing by the service controller, to the switching system processing the initiating call, instructions for routing the initiating call based on the routing information associated with the particular bridge, whereby the initiating call is connected through the network to the particular bridge;

means for determining by the service controller, in communication with one of the switching systems processing another call, that the another call is to join the conference initiated by the initiating call, wherein an input secondary code is received from the another call and correlated to the secondary authorization code which is paired with the primary authorization code;

means for identifying, from the availability information, the particular bridge allocated to the initiating call, wherein the primary authorization code, being paired with the secondary authorization code, is correlated to the particular bridge; and

means for providing by the service controller, to the switching system processing the another call, instructions for routing the another call based on the routing information associated with the particular bridge, whereby the another call is connected through the network to the particular bridge.

44. A system as claimed in claim 43, wherein the identification of the first call is an automatic number identification (ANI) provided by the switching system processing the first call.

45. A system as claimed in claim 44, wherein the identification of the first call is a calling line identification (CLID) provided by the switching system processing the first call.

46. In a telecommunications network including a plurality of switching systems, one or more of which having one or more conference bridges, a system for effecting a conferencing service comprising:

means for maintaining routing and availability information with respect to the one or more conference bridges, wherein a bridge that is not allocated to a call is available;

means for determining by a service controller, in communication with one of the switching systems processing an initiating call, that the initiating call is to initiate a conference;

means for allocating a particular bridge, which the availability information indicates is available, to the initiating call;

means for updating the availability information associated with the particular bridge to indicate that the particular bridge is allocated to the initiating call;

means for providing by the service controller, to the switching system processing the initiating call, instructions for routing the initiating call based on the routing information associated with the particular bridge, whereby the initiating call is connected through the network to the particular bridge;

means for providing by the switching system that processes the initiating call, to the service controller, a signal indicating that the initiating call connection to the particular bridge has terminated; and

means for updating the availability information associated with the particular bridge to indicate that the particular bridge is available.

47. In a telecommunications network including a plurality of switching systems, one or more of which having one or more conference bridges, a system for effecting a conferencing service comprising:

means for maintaining routing and availability information with respect to the one or more conference bridges, wherein a bridge that is not allocated to a call is available;

means for determining by a service controller, in communication with one of the switching systems processing an initiating call, that the initiating call is to initiate a conference;

means for allocating a particular bridge, which the availability information indicates is available, to the initiating call;

means for updating the availability information associated with the particular bridge to indicate that the particular bridge is allocated to the initiating call;

means for providing by the service controller, to the switching system processing the initiating call, instructions for routing the initiating call based on the routing information associated with the particular bridge, whereby the initiating call is connected through the network to the particular bridge;

means for recording, by the service controller, a first start time corresponding to the initiating call connection to the particular bridge;

means for providing by the switching system that processes the initiating call, to the service controller, an initiating call terminated signal indicating that the initiating call connection to the particular bridge has terminated; and

means for responsive to receiving the initiating call terminated signal, updating the availability information associated with the particular bridge to indicate that the particular bridge is available and recording a first stop time with respect to the initiating call.

48. A system as claimed in claim 47, comprising:

means for recording, by the service controller, a second start time corresponding to the another call connection to the particular bridge;

means for providing by the switching system that processes the another call, to the service controller, an another call terminated signal indicating that the another call connection to the particular bridge has terminated; and

means for providing by the service controller, to the switching system processing the another call, instructions for routing the another call based on the routing information associated with the particular bridge, whereby the another call is connected through the network to the particular bridge.