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Terminal state synchronization method, related device and system

A terminal state and terminal technology, applied in the field of communication, to avoid multiple call attempts and improve resource utilization

Active Publication Date: 2019-10-15
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the terminal of the other party may not hang up in time after one terminal hangs up, which leads to invalid call attempts by the AS on the network side.

Method used

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  • Terminal state synchronization method, related device and system
  • Terminal state synchronization method, related device and system
  • Terminal state synchronization method, related device and system

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Embodiment Construction

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0048] The present invention provides a terminal state synchronization method, device and message processing system, see figure 1 , figure 1 It is an overall architecture diagram of the terminal state synchronization system provided by the embodiment of the present invention.

[0049] As shown in the figure, the terminal state synchronization system mainly includes a SIP-based application server AS 100 on the network side and SIP-based terminals, and the SIP ...

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Abstract

The invention provides a terminal state synchronization method, a related device and a system. The method comprises the steps that an AS (application server) can send a status subscription message to the other terminal in a call after receiving a BYE message sent by one side in the call, accurately obtain the state of the other terminal according to the received status notification message, and carry out the trial call of the terminal when the terminal is spare. Compared with the prior art, the method provided by the embodiment of the invention can enable the AS to get the state of the terminal accurately, avoid the repeated trial calls caused by that the A obtains the wrong state of the terminal, and improves the resource utilization rate of the AS.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a terminal state synchronization method and system, a terminal and an application server. Background technique [0002] In the fixed voice network, some services related to user status are provided, such as call forwarding on busy (CallForward on Busy, CFB), call waiting (CW, Call Waiting), and group selection services. The terminal's busy / idle state. Wherein, the round-selecting group service is also called switchboard service and private branch exchange (Private Branch Exchange, PBX) service, for example, the switchboard number of an enterprise, and multiple seat extensions are linked to it. [0003] In an IP-based Session Initiation Protocol (Session Initiation Protocol, SIP) network, network elements communicate through SIP sessions. When the terminal acts as the calling party, after the user goes off-hook and dials the number, the terminal sends a session request in...

Claims

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Application Information

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IPC IPC(8): H04M3/42
Inventor 肖玉
Owner HUAWEI TECH CO LTD