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Method and system for implementing isdn service access on sip gateway

A service access and gateway technology, applied in the direction of transmission systems, networks for providing telephone services, interconnection devices, etc., can solve the problems of reducing the use value of ISDN terminals, idle ISDN terminals, shortening the life cycle of ISDN terminals, etc. Use value, delayed life cycle, low cost effect

Active Publication Date: 2021-09-07
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since the existing SIP (Session Initiation Protocol, Session Initiation Protocol) gateways that carry VoIP services do not support ISDN services, this will cause the ISDN terminals deployed before VoIP to appear idle, that is, the appearance of VoIP services shortens the ISDN service. Terminal life cycle reduces the use value of ISDN terminals

Method used

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  • Method and system for implementing isdn service access on sip gateway
  • Method and system for implementing isdn service access on sip gateway
  • Method and system for implementing isdn service access on sip gateway

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] ISDN signaling in the method includes ISDN call signaling, ISDN ringing signaling and ISDN off-hook signaling; control events include call control events, ringing control events and off-hook control events; SIP signaling includes SIP call signaling , SIP ringing signaling and SIP off-hook signaling; on this basis, the method specifically includes the following steps:

[0057] Call establishment process, including ISDN calling process or ISDN called process:

[0058] The ISDN calling process includes:

[0059] S101: After the SIP gateway receives the ISDN call signaling sent by the ISDN terminal, it converts the ISDN call signaling into a call control event, maps the call control event into the SIP call signaling and sends it to the NGN network, and then turns to S102;

[0060] S102: After the SIP gateway receives the SIP ringing signaling sent by the NGN network, it converts the SIP ringing signaling into a ringing control event, maps the ringing control event into an ...

Embodiment 3

[0070] On the basis of embodiment one, after the call setup flow, also include the voice data conversion flow: when the SIP gateway receives the voice data flow sent by the ISDN terminal, the voice data flow is converted into a network data flow (RTP flow, Real-timeTransport Protocol, Real-time Transport Protocol) and then transmitted to the NGN network; when the SIP gateway receives the network data flow sent by the NGN network, it converts the network data flow into a voice data flow and then transmits it to the NGN network.

[0071] It can be seen from this that this embodiment clearly illustrates the media stream conversion service process between ISDN and NGN.

Embodiment 4

[0073] On the basis of Embodiment 1, the ISDN signaling also includes the ISDN on-hook signaling, the control event also includes the on-hook control event, and the SIP signaling also includes the SIP on-hook signaling; after S101 or S201, the following process is also included: when the SIP gateway receives After the ISDN on-hook signaling sent by the ISDN terminal or the SIP on-hook signaling sent by the NGN network, it enters the on-hook process. The on-hook process includes:

[0074] When the SIP gateway receives the ISDN on-hook signaling sent by the ISDN terminal (at this time, the ISDN terminal has released resources), it converts the ISDN on-hook signaling into an on-hook control event, maps the on-hook control event to a SIP on-hook signaling, and sends it to the NGN network , the NGN network releases resources after receiving the SIP hang-up signaling;

[0075] When the SIP gateway receives the SIP on-hook signaling sent by the NGN network (at this time, the NGN netw...

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Abstract

The invention discloses a method and system for realizing ISDN service access on a SIP gateway, and relates to the fusion field of ISDN service and VoIP service. The method comprises the following steps: after the SIP gateway receives the ISDN signaling sent by the ISDN terminal, it converts the ISDN signaling into a corresponding control event, maps the control event to the SIP signaling and sends it to the NGN network; the SIP gateway receives the NGN network After sending the SIP signaling, convert the SIP signaling into corresponding control events, map the control events into ISDN signaling and send them to the ISDN terminal. The invention can access the ISDN service on the SIP gateway bearing the VoIP service, thereby prolonging the life cycle of the ISDN terminal and improving the use value of the ISDN terminal.

Description

technical field [0001] The present invention relates to the fusion field of ISDN (Integrated Services Digital Network) business and VoIP (Voice over Internet Protocol, internet phone) business, and specifically relates to a method and system for realizing ISDN business access on a SIP gateway. Background technique [0002] ISDN is a typical circuit-switching network system. It transmits comprehensive services such as voice, fax, data, and images end-to-end through ordinary telephone copper wires, and obtains better call quality and smoother transmission speed than analog systems. With the rapid development of the Internet, the speed of the access network continues to increase, and the services on the Internet have changed from narrowband to broadband, from non-real-time to real-time, and NGN (Next Generation Network, Next Generation Network) with VoIP services as the core has emerged. VoIP service is to digitally encode voice signals, compress them into frames, and then conv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04M7/00
CPCH04L65/1066H04M7/006H04L65/1104
Inventor 何利英周浔石清泉
Owner FENGHUO COMM SCI & TECH CO LTD
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