Method and system for control conversation timer in conversation iniatial protocol network

A technology for controlling sessions and initial protocols, applied in the transmission system, electrical components, etc., can solve problems affecting message processing, repeated transmission, and TU cannot realize the unified setting of TimerC, so as to improve service quality and reduce repeated transmission.

Inactive Publication Date: 2006-11-08
HUAWEI TECH CO LTD
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Problems solved by technology

Moreover, if the forward TU entity TUn still cannot return the formal response in time, it will resend the provisional response to the backward TU entity TUn-1 within the minimum timing period of Timer C, which may cause multiple retransmissions of the provisional response
[0006] It can be seen that in the existing SIP session establishment process, the unified setting of Timer C cannot be r

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  • Method and system for control conversation timer in conversation iniatial protocol network
  • Method and system for control conversation timer in conversation iniatial protocol network

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[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] The invention discloses a method for controlling a session timer in a SIP network. The method is applied to a system including: an AS and a backward TU entity provided with a session timer; During the session, determine the duration of the session timer and send it to the backward TU entity; the backward TU entity reconfigures its own session timer according to the received duration of the session timer.

[0041] Among them, there may be one or more TU entities between the AS and the calling party, and these TU entities can be called the backward TU entities of the AS, including: the backward TU entities connected to the AS, and the backward TU entities connected The backward TU entity. In this case, when the AS returns the duration of the session timer, it first returns the duration of the session timer to the backward TU ent...

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Abstract

The present invention discloses controlling session timer method in session initiation protocol (SIP) network, said method used in application service server (AS) and backward transaction user (TU) solid system, said backward TU solid configured having session timer. Said method includes A, said AS determining said session timer duration and transmitting to backward TU solid; B, step A mentioned backward TU solid according to received session timer duration to reconfigure own session timer. The present invention also discloses a system. The present invented method and system can reduce temporary responsive repeating transmission.

Description

technical field [0001] The invention relates to a Session Initiation Protocol (SIP, Session Initiation Protocol) network technology, in particular to a method and system for controlling a session timer in a SIP network. Background technique [0002] The SIP is an IP telephony signaling protocol proposed by the Internet Engineering Task Force (IETF, Internet Engineering Task Force). As its name implies, SIP is used to initiate sessions, can control the establishment and termination of multimedia sessions participated by multiple participants, and can dynamically adjust and modify session attributes. Generally, various SIP application services can be implemented based on the IP Multimedia Subsystem (IMS) and the Public Switched Telephone Network (PSTN). In the PSTN, the SIP application is implemented in the application server (AS), and provides various value-added services to users through the interaction between the soft switch (soft switch) and the AS, such as: pre-paid cal...

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Application Information

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IPC IPC(8): H04L29/06
CPCH04L69/28H04L65/1104
Inventor 梁亮
Owner HUAWEI TECH CO LTD
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