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Method and system for implementing ISDN service access on SIP gateway

A technology of service access and SIP protocol, applied in the transmission system, the network of telephone services provided, and telephone communication, etc., can solve the problems of reducing the use value of ISDN terminals, ISDN terminals are idle, and shortening the life cycle of ISDN terminals, etc., to achieve improved Use value, delayed life cycle, low cost effect

Active Publication Date: 2019-04-16
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
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Embodiment 1

[0056] The ISDN signaling in this 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] ISDN calling process includes:

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

[0060] S102: After receiving the SIP ringing signaling sent by the NGN network, the SIP gateway converts the SIP ringing signaling to a ringing control event, maps the ringing control event to ISDN ringing signaling, ...

Embodiment 3

[0070] On the basis of the first embodiment, the call establishment process also includes a voice data conversion process: when the SIP gateway receives the voice data stream sent by the ISDN terminal, it converts the voice data stream into a network data stream (RTP stream, Real-time Transport Protocol, Real-time transmission protocol) and then transmitted to the NGN network; when the SIP gateway receives the network data stream sent by the NGN network, it converts the network data stream into a voice data stream and transmits it to the NGN network.

[0071] From this, it can be seen that this embodiment clearly describes the ISDN and NGN media stream conversion service process.

Embodiment 4

[0073] On the basis of Embodiment 1, ISDN signaling also includes ISDN on-hook signaling, control events also include on-hook control events, and SIP signaling also includes SIP on-hook signaling; after S101 or S201, the following process is also included: When the SIP gateway receives After the ISDN hang-up signaling sent by the ISDN terminal or the SIP hang-up 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 (the ISDN terminal has released resources at this time), it converts the ISDN on-hook signaling into on-hook control events, maps the on-hook control events to SIP on-hook signals, and sends them to the NGN network , The NGN network releases resources after receiving SIP on-hook signaling;

[0075] When the SIP gateway receives the SIP on-hook signaling sent by the NGN network (the NGN network has released resources at this time), it conve...

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Abstract

The invention discloses a method and system for implementing ISDN service access on a SIP gateway, and relates to the field of integration of an ISDN service and a VoIP service. The method comprises the following steps: after receiving an ISDN signaling sent by an ISDN terminal, the SIP gateway converts the ISDN signaling into a corresponding control event, maps the control event as an SIP signaling, and sends the SIP signaling to the NGN network; after receiving the SIP signaling sent by the NGN network, the SIP gateway converts the SIP signaling into a corresponding control event, maps the control event as an ISDN signaling, and sends the ISDN signaling to the ISDN terminal. The method and system can access an ISDN service on the SIP gateway carrying the VoIP service, thereby prolongingthe life cycle of the ISDN terminal and improving the use value of the ISDN terminal.

Description

Technical field [0001] The invention relates to the integration field of ISDN (Integrated Services Digital Network) services and VoIP (Voice over Internet Protocol, Internet telephony) services, and specifically relates to a method and system for realizing ISDN service access on a SIP gateway. Background technique [0002] ISDN is a typical circuit-switched network system. It transmits comprehensive services such as voice, fax, data, image, etc. through ordinary telephone copper wire end-to-end to obtain better call quality and smoother transmission speed than analog systems. With the rapid development of the Internet and the continuous improvement of access network speeds, Internet services have moved from narrowband to broadband, from non-real-time to real-time, and NGN (Next Generation Network) with VoIP services as the core emerged. VoIP service is to digitally encode and compress voice signals into frames, and then convert them into IP data packets for transmission on the IP...

Claims

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Application Information

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Patent Type & Authority Applications(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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