Method, system and media gateway implementing relay gateway disaster tolerated uninterrupted call

A technology of media gateway and relay gateway, applied in electrical components, selection devices, wireless communication, etc., can solve problems such as interruption and failure to maintain disaster recovery calls, achieve simple process of maintaining voice channels, and improve reliability and disaster recovery capabilities. , the effect of maintaining consistency

Active Publication Date: 2009-02-11
ZTE CORP
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] However, simply adopting the dual-homing scheme has the following disadvantages: on the one hand, because the switching process from the active softswitch to the backup softswitch takes a period of time, the service of the newly initiated call will be interrupted during the switching; on the other hand , because after re-registration, the system needs to reset all the physical termination points of the media gateway, so the call initiated before the disaster recovery cannot be maintained

Method used

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  • Method, system and media gateway implementing relay gateway disaster tolerated uninterrupted call
  • Method, system and media gateway implementing relay gateway disaster tolerated uninterrupted call
  • Method, system and media gateway implementing relay gateway disaster tolerated uninterrupted call

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Embodiment Construction

[0035] The present invention utilizes the Shuanghui networking in the disaster recovery process of the trunk gateway, and uses the signaling network management message to control the signaling message of the call, thereby realizing the protection of the existing call before the disaster recovery and the newly initiated call in the disaster recovery process at the same time. Normal setup of the call. The present invention will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0036] In all the following embodiments, SS represents a soft switch (Soft Switch), TG represents a trunk gateway (Trunk Gateway), and SG represents a signaling gateway (Signal Gateway). The two logical functional entities, TG and SG, can be built in one physical entity, or they can exist as separate network elements in different physical entities. . For convenience of description, in the embodiment of the present invention, the TG and the SG are c...

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Abstract

The invention provides a method for realizing the uninterrupted communication when the trunk gateway disaster tolerance occurs, as well as a system and media gateways thereof. The method comprises the following steps: after a first media gateway detects that a first link between the first media gateway and a first soft switch device is disconnected, the first media gateway can provide protection for the existing speech channel of the trunk gateway users and send the transmission-prohibited message to the end office; and after the end office receives the transmission-prohibited message, all the recent incoming calls are routed to a second media gateway. According to the method, the reliability and the disaster tolerance capacity of the network system can be improved, and the satisfaction degree of clients can be enhanced.

Description

technical field [0001] The present invention relates to a next generation network (NGN, Next Generation Network), in particular to a method, a system and a media gateway for realizing disaster recovery and uninterrupted communication of a relay gateway. Background technique [0002] In the NGN network, in order to improve the reliability of the network, the disaster recovery mechanism of dual-homing technology is usually adopted in the networking. Here, the dual-homing mentioned actually refers to a special terminal connection mode, so that each terminal that needs softswitch to provide services is connected to two softswitch devices at the same time, that is, the same terminal belongs to two softswitch devices, one for One for primary use and one for backup. The terminal and the softswitch, and between the active softswitch and the standby softswitch are connected through a core IP network or a dedicated network. The terminal can be served by any one of the two softswitch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/22H04Q7/38
CPCH04Q3/0079H04W88/16
Inventor 王刚魏晓峰
Owner ZTE CORP
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