System and method for interfacing telephony voice signals with a broadband access network

• US 6,879,667 B1
• Filed: 04/23/2002
• Issued: 04/12/2005
• Est. Priority Date: 05/07/2001
• Status: Expired due to Term

• Current Assignee: Genband US LLC (Ribbon Communications, Inc.)
• Original Assignee: General Bandwidth, Inc.
• Inventors: O'Brien, George D. Jr., Gerson, I. Steve, Sparks, Donald L., Carew, A. J. Paul, Whitcher, Robert H., Renucci, Peter J., Anconetani, Anthony H., Pendleton, Matthew A.
• Primary Examiner(s): SMITH, CREIGHTON H
• Application Number:
  US10/131,121
• Time in Patent Office: 1,085 Days
• Field of Search: 379/88.17, 379/406.06, 379/201.01, 370/397
• US Class Current: 379/88.17
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04M 7/125 Details of gateway equipment

Abstract

A voice gateway (18) in a telecommunications network (1) includes a plurality of telephony port modules (102). Each telephony port module (102) receives telephony voice signals from a public switched telephony network (13). Each telephony port module (102) includes one or more digital signal processors (110) that perform one or more processing functions on the telephony voice signals. A particular telephony port module (102) may receive a telephony voice signal and use its associated digital signal processor (110) to process the received telephony voice signal or transfer the received telephony voice signal for processing to any digital signal processor (110) on any telephony port module (102). Telephony signals may also be transferred for processing to digital signal processors (110) on another voice gateway (18) in a voice gateway system.

Claims

1. A system for interfacing telephony voice signals with a broadband access network, comprising:

a plurality of telephony port modules each operable to receive telephony voice signals, each of the plurality of telephony port modules including one or more digital signal processors, each digital signal processor operable to perform one or more processing functions on the telephony voice signals, wherein each of the plurality of telephony port modules may transfer a received telephony voice signal to any digital signal processor on any of the plurality of telephony port modules.

2. The system of claim 1, wherein a particular digital signal processor performs the processing functions on the telephony voice signals, the particular digital signal processor returning processed telephony voice signals to an originating telephony port module upon completion of processing function performance.

3. The system of claim 1, wherein specific digital signal processors are assigned to perform a specific processing function.

4. The system of claim 3, wherein the specific digital signal processors may be dynamically assigned to perform a different specific processing function than originally assigned.

5. The system of claim 1, wherein the processing functions performed by any digital signal processor include at least one of voice compression, voice decompression, and echo cancellation.

6. A gateway system for interfacing telephony signals with a broadband access network, comprising:

an access network module operable to interface with the broadband access network;

at least one telephony port module operable to interface with a public switched telephone network, the telephony port module including a plurality of digital signal processors operable to perform processing functions on telephony signals received from either the broadband access network or the public switched telephone network;

a system controller module operable to manage a flow of telephony signals between the access network module and the telephony port module, the telephony port module operable to assign telephony signals to any digital signal processor of the telephony port module.

7. The gateway system of claim 6, wherein the telephony port module receiving telephony signals for processing may transfer the telephony signals to one or more digital signal processors on a different telephony port module.

8. The gateway system of claim 6, wherein the telephony port module dynamically assigns telephony signals to digital signal processors to improve digital signal processor utilization.

9. The gateway system of claim 6, wherein the telephony port module performs processing of telephony signals according to subscriber profiles.

10. The gateway system of claim 6, wherein the telephony signals from a different gateway system may be processed on digital signal processors in the telephony port module.

11. A gateway system for interfacing telephony signals with a broadband access network, comprising:

a first gateway operable to interface between a broadband access network and a public switched telephone network, the first gateway including a first interface communicating with the broadband access network, the first gateway including a second interface operable to communicate with the public switched telephone network, the first gateway including a plurality of digital signal processors operable to process telephony signals passing through the first gateway;

a second gateway operable to interface with the first gateway, the first gateway operable to share the first and second interfaces and the plurality of digital signal processors with the second gateway.

12. The gateway system of claim 11, wherein the second gateway includes a plurality of digital signal processors, the second gateway operable to share the plurality of digital signal processors in the second gateway with the first gateway.

13. The gateway system of claim 11, wherein the second gateway includes a third interface operable to communicate with the public switched telephone network, the second gateway operable to share the third interface with the first gateway.

14. The gateway system of claim 11, wherein the second gateway includes a fourth interface operable to communicate with the broadband access network, the second gateway operable to share the fourth interface with the first gateway.

15. The gateway system of claim 11, wherein the first gateway includes a third interface operable to communicate with the public switched telephone network, the third interface providing additional subscriber capacity, the first gateway operable to share the third interface with the second gateway.

16. A method for interfacing telephony signals with a broadband access network, comprising:

receiving a telephony signal at a first gateway of a gateway system in a telecommunications network;

providing the telephony signal for processing to one of a plurality of digital signal processors in the gateway system, the plurality of digital signal processors being shared across the gateway system, the one of the plurality of digital signal processors being in a second gateway of the gateway system.

17. The method of claim 16, further comprising:

sharing interfaces to the broadband access network and to a public switched telephone network between the first gateway and the second gateway of the gateway system.