Apparatus and method for using multiple call controllers of voice-band calls

US 7,460,520 B2
Filed: 06/18/2003
Issued: 12/02/2008
Est. Priority Date: 11/20/2002
Status: Expired due to Fees

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1. An apparatus connecting a local packet network (LPN) and a circuit-switched network, the apparatus comprising:

a first protocol endpoint configured to receive at least one first external call control message of a first protocol from a first call controller associated with the circuit-switched network and to map the at least one first external call control message to at least one corresponding first internal call control message of an internal protocol;

a second protocol endpoint configured to receive at least one second external call control message of a second protocol from an integrated access device (IAD) associated with the LPN and to map the at least one second external call control message to at least one corresponding second internal call control message of an internal protocol; and

a protocol adapter configured to receive the first and the second internal call control messages and to route the at least one first internal call control message to the second protocol endpoint and the at least one second internal call control message to the first protocol endpoint;

wherein the first protocol endpoint is further configured to receive the at least one second internal call control message and to map the at least one second internal call control message to a third external call control message of the first protocol, andwherein the second protocol endpoint is further configured to receive the at least one first internal call control message and to map the at least one first internal call control message to a fourth external call control message of the second protocol.

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Abstract

An apparatus for using multiple call controllers of voice-band calls is provided. The apparatus includes a first protocol endpoint, a second protocol endpoint, and a protocol adapter. The first protocol endpoint is configured to receive at least one first external message from a first call controller and to map the first external message to at least one corresponding first internal call control message. The second protocol endpoint is configured to receive at least one second external message from an integrated access device and to map the at least one second external message to at least one corresponding second internal call control message. The protocol adapter is configured to receive the first and the second internal messages and to route the first and the second internal messages to the appropriate one of the first and second endpoints.

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27 Claims

1. An apparatus connecting a local packet network (LPN) and a circuit-switched network, the apparatus comprising:
- a first protocol endpoint configured to receive at least one first external call control message of a first protocol from a first call controller associated with the circuit-switched network and to map the at least one first external call control message to at least one corresponding first internal call control message of an internal protocol;
  
  a second protocol endpoint configured to receive at least one second external call control message of a second protocol from an integrated access device (IAD) associated with the LPN and to map the at least one second external call control message to at least one corresponding second internal call control message of an internal protocol; and
  
  a protocol adapter configured to receive the first and the second internal call control messages and to route the at least one first internal call control message to the second protocol endpoint and the at least one second internal call control message to the first protocol endpoint;
  
  wherein the first protocol endpoint is further configured to receive the at least one second internal call control message and to map the at least one second internal call control message to a third external call control message of the first protocol, andwherein the second protocol endpoint is further configured to receive the at least one first internal call control message and to map the at least one first internal call control message to a fourth external call control message of the second protocol.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- - 2. The apparatus of claim 1, further comprising a third protocol endpoint configured to receive at least one fifth external call control message of a third protocol from a second call controller and to map the fifth external call control message to at least one corresponding third internal call control message of the internal protocol, wherein the protocol adapter is further configured to receive the third internal call control message and to route the third internal call control message to an appropriate one of the first and second protocol endpoints.
  - 3. The apparatus of claim 1, wherein the first protocol endpoint is further configured to receive at least one third internal call control message of the internal protocol from the protocol adapter and to map the at least one third internal call control message to at least one corresponding fifth external call control message of the first protocol for transmission to the first call controller.
  - 4. The apparatus of claim 1, further comprising a bearer connection manager configured to manage each of a plurality of bearer connections, wherein each of the plurality of bearer connections comprises at least two connection points.
  - 5. The apparatus of claim 4, wherein the bearer connection manager is capable of at least one of creating the bearer connection, destroying the bearer connection, connecting the at least two connection points in the bearer connection, adding a connection point to the bearer connection, deleting the connection point from the bearer connection, and modifying the characteristics of the bearer connection.
  - 6. The apparatus of claim 4, further comprising a call segment configured to connect and to disconnect the at least two connection points in the bearer connection.
  - 7. The apparatus of claim 6, wherein the call segment is further configured to process a set of bearer-related messages.
  - 8. The apparatus of claim 1, further comprising:
    - a first interface, configured to receive a first plurality of voice packets from the LPN and to transmit a second plurality of voice packets to the LPN;
      
      a second interface, configured to receive a first plurality of voice timeslots from the circuit-switched network and to transmit a second plurality of voice timeslots to the circuit-switched network;
      
      a first converter, configured to receive the first plurality of voice packets from the first interface and to convert the first plurality of voice packets to the second plurality of voice timeslots; and
      
      a second converter, configured to receive the first plurality of voice timeslots from the second interface and to convert the first plurality of voice timeslots to the second plurality of voice packets.
  - 9. The apparatus of claim 1, wherein the first external call control message is a General Requirements 303 (GR-303) message.
  - 10. The apparatus of claim 1, wherein the first external call control message is a European Telecommunications Standards Institute (ETSI) V5 message.
  - 11. The apparatus of claim 1, wherein the first external call control message is a Media Gateway Control Protocol (MGCP) message.
  - 12. The apparatus of claim 1, wherein the first external call control message is a Session Initiation Protocol (SIP) message.
  - 13. The apparatus of claim 1, wherein the first external call control message is a H.248 message.

14. An apparatus connecting a local packet network (LPN) and a circuit-switched network and capable of supporting multiple call control protocols simultaneously, the apparatus comprising:
- a first call control protocol endpoint configured to exchange a first plurality of external call control messages of a first protocol associated with the first call control protocol endpoint with a first call controller associated with the circuit-switched network, and further configured to map external call control messages of the first protocol to corresponding internal call control messages of an internal protocol;
  
  a second call control protocol endpoint configured to exchange a second plurality of external call control messages of a second protocol associated with the second call control protocol endpoint with a second call controller, and further configured to map external call control messages of the second protocol to corresponding internal call control messages of the internal protocol;
  
  a third call control protocol endpoint configured to exchange a third plurality of external call control messages of a third protocol associated with the third call control protocol endpoint with an integrated access device (IAD) associated with the LPN, and further configured to map external call control messages of the third protocol to corresponding internal call control messages of the internal protocol; and
  
  a protocol adapter configured to receive internal call control messages from the first, second and third call control protocol endpoints, and further configured to route each of the internal call control messages received from one of the call control protocol endpoints to another of the call control protocol endpoints, wherein the another call control protocol endpoint is configured to map the routed internal call control message to a corresponding external call control message of the protocol associated with the another call control protocol endpoint.
- View Dependent Claims (15, 16, 17)
- - 15. The apparatus of claim 14, wherein the first external call control message is a General Requirements 303 (GR-303) message.
  - 16. The apparatus of claim 14, wherein the first external call control message is a European Telecommunications Standards Institute (ETSI) V5 message.
  - 17. The apparatus of claim 14, wherein the first external call control message is a Media Gateway Control Protocol (MGCP) message.

18. A method for supporting multiple call control protocols simultaneously in a gateway that connects a local packet network (LPN) and a circuit-switched network, the method comprising:
- receiving at least one first external call control message from a first call controller associated with the circuit-switched network, the at least one first external call control message of a protocol associated with the first call controller;
  
  mapping the at least one first external call control message to at least one corresponding first internal call control message of an internal protocol;
  
  receiving at least one second external call control message from a second call controller, the at least one second external call control message of a protocol associated with the second call controller;
  
  mapping the at least one second external call control message to at least one corresponding second internal call control message of the internal protocol;
  
  receiving at least one third external call control message from an integrated access device (IAD) associated with the LPN, the at least one third external call control message of a protocol associated with the IAD;
  
  mapping the at least one third external call control message to at least one corresponding third internal call control message of the internal protocol;
  
  routing the at least one first internal call control message for mapping to a corresponding fourth external call control message of the protocol associated with either the second call controller or the IAD;
  
  routing the at least one second internal call control message for mapping to a corresponding fifth external call control message of the protocol associated with either the first call controller or the IAD; and
  
  routing the at least one third internal call control message for mapping to a corresponding sixth external call control message of the protocol associated with either the first or second call controllers.
- View Dependent Claims (19, 20, 21, 22, 23, 24)
- - 19. The method of claim 18, further comprising managing each of a plurality of bearer connections wherein each of the plurality of bearer connections comprises at least two connection points.
  - 20. The method of claim 18, further comprising:
    - receiving a first plurality of voice packets from the LPN;
      
      transmitting a second plurality of voice packets to the LPN;
      
      receiving a first plurality of voice timeslots from the circuit-switched network;
      
      transmitting a second plurality of voice timeslots to the circuit-switched network;
      
      converting the first plurality of voice packets to the first plurality of voice timeslots; and
      
      converting the second plurality of voice timeslots to the second plurality of voice packets.
  - 21. The method of claim 18, wherein the first external call control message is a Generic Requirements 303 (GR-303) message.
  - 22. The method of claim 18, wherein the first external call control message is a European Telecommunications Standards Institute (ETSI) V5 message.
  - 23. The method of claim 18, wherein the first external call control message is a Media Gateway Control Protocol (MGCP) message.
  - 24. The method of claim 18, wherein the first external call control message is a Session Initiation Protocol (SIP) message.

25. A system for supporting multiple call control protocols simultaneously in a gateway that connects a local packet network (LPN) and a circuit-switched network, the system comprising:
- means for exchanging a first plurality of call control messages with a first call controller associated with the circuit-switched network, the first plurality of call control messages of a protocol associated with the first call controller;
  
  means for mapping each of the first plurality of call control messages received from the first call controller to a corresponding internal call control message of an internal protocol;
  
  means for mapping each of the first plurality of call control messages sent to the first call controller from a corresponding routed internal call control message of the internal protocol;
  
  means for exchanging a second plurality of call control messages with a second call controller, the second plurality of call control messages of a protocol associated with the second call controller;
  
  means for mapping each of the second plurality of call control messages received from the second call controller to a corresponding internal call control message of the internal protocol;
  
  means for mapping each of the second plurality of call control messages sent to the second call controller from a corresponding routed internal call control message of the internal protocol;
  
  means for exchanging a third plurality of call control messages of a third protocol with an integrated access device (IAD) associated with the LPN, the third plurality of call control messages of a protocol associated with the IAD;
  
  means for mapping each of the third plurality of call control messages received from the IAD to a corresponding internal call control message of the internal protocol;
  
  means for mapping each of the third plurality of call control messages sent to the IAD from a corresponding routed internal call control message of the internal protocol; and
  
  means for routing each of the internal call control messages from one of the means for mapping from received call control messages to a predetermined one of the means for mapping to sent call control messages.

26. A computer readable storage medium containing program code for controlling a method for supporting multiple call control protocols simultaneously in a voice-over-packet (VoP) media gateway that connects a local packet network (LPN) and a circuit-switched network, the program code comprising logic configured to perform the steps of:
- receiving at least one first external call control message of a first protocol from a first call controller associated with the circuit-switched network;
  
  mapping the at least one first external call control message to at least one corresponding first internal call control message of an internal protocol;
  
  receiving at least one second external call control message of a second protocol from a second call controller;
  
  mapping the at least one second message to at least one corresponding second internal call control message of the internal protocol;
  
  receiving at least one third external call control message of a third protocol from an integrated access device (IAD) associated with the LPN;
  
  mapping the at least one third external call control message to at least one corresponding third internal call control message of the internal protocol;
  
  routing the at least one first internal call control message for mapping to at least one corresponding fourth external call control message of the second or third protocol;
  
  routing the at least one second internal call control message for mapping to at least one corresponding fifth external call control message of the first or third protocol; and
  
  routing the at least one third internal call control message for mapping to at least one corresponding sixth external call control message of the first or second protocol.

27. An apparatus connecting a local packet network (LPN) and a circuit-switched network, the apparatus comprising:
- a plurality of protocol endpoints, each protocol endpoint configured to receive external call control messages of an external protocol associated with the protocol endpoint and to map the external call control messages to corresponding internal call control messages of an internal protocol for routing to another of the plurality of protocol endpoints, each endpoint further configured to receive routed internal call control messages of the internal protocol and to map the routed internal call control messages to corresponding external call control messages of the external protocol associated with the protocol endpoint,wherein at least one of the plurality of protocol endpoints is configured to receive the external call control messages from a first call controller associated with the circuit-switched network andat least a second of the plurality of protocol endpoints is configured to receive the external call control messages from an integrated access device (IAD) associated with the LPN; and
  
  a protocol adapter configured to route the internal call control messages from the mapping protocol endpoint to the another protocol endpoint.

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Current Assignee
Paradyne Corporation (DZS, Inc.)
Original Assignee
Paradyne Corporation (DZS, Inc.)
Inventors
Germain, Gregory, Cody, Timothy
Primary Examiner(s)
DEANE JR, WILLIAM J

Application Number

US10/463,964
Publication Number

US 20040095925A1
Time in Patent Office

1,994 Days
Field of Search

370/352, 370/356, 370/395.1, 370/524, 370/401
US Class Current

370/352
CPC Class Codes

H04Q 3/0045 involving hybrid, i.e. a mi...

Apparatus and method for using multiple call controllers of voice-band calls

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Apparatus and method for using multiple call controllers of voice-band calls

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