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Conference establishment method and system based on back-to-back user agent

A user agent and user technology, applied in transmission systems, electrical components, etc., can solve problems such as call addition failures

Active Publication Date: 2016-08-03
泰兴市高桥炉业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0037] Obviously, when B2BUA participates in the conference service establishment process, if the existing call flow is still used, it will lead to the failure of call addition

Method used

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  • Conference establishment method and system based on back-to-back user agent
  • Conference establishment method and system based on back-to-back user agent
  • Conference establishment method and system based on back-to-back user agent

Examples

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Embodiment Construction

[0083] The basic idea of ​​the present invention is that after receiving the initial dialogue request, the AS performing the B2BUA behavior modifies the initial filtering rules of the initiator user of the initial request, and the S-CSCF receives the modified The AS that executes the B2BUA behavior is triggered when a subsequent request message of the initial filtering rule is issued.

[0084] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by citing the following embodiments and referring to the accompanying drawings.

[0085] Figure 4 It is a flowchart of application example 1 of the back-to-back user agent-based conference establishment method of the present invention, such as Figure 4 As shown, the method for establishing a conference based on back-to-back user agents in this example specifically includes the following steps:

[0086] Step 401~step 403, session es...

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PUM

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Abstract

The invention discloses a conference establishment method based on back-to-back user agent, which includes: after receiving the initial request of dialogue as the AS performing B2BUA behavior, modifying the initial filter rule of the initiator user of the initial request; the service call session control function When the entity S-CSCF receives the subsequent request message conforming to the modified initial filtering rule, it triggers the AS that performs the B2BUA behavior. The present invention also discloses a conference establishment system based on back-to-back user agent, including AS, HSS and S-CSCF; The initial filtering rule of the initiator user of the initial request; the triggering unit is set in the S-CSCF and is used to trigger the AS that executes the B2BUA behavior. The present invention can still ensure the correct access requested by users after the addition of an AS that executes the B2BUA behavior.

Description

technical field [0001] The present invention relates to a conference establishment technology, in particular to a conference establishment method and system based on a back-to-back user agent (B2BUA, BacktoBackUserAgent) applied in an IP multimedia subsystem (IMS, IPMultimedia Subsystem). Background technique [0002] The 3rd Generation Partnership Project (3GPP, 3rdGenerationPartnerProject) defines that when an application server (AS, ApplicationServer) processes a Session Initiation Protocol (SIP, SessionInitiationProtocol) message, the behavior mode can be a proxy (Proxy), a routing back-to-back user agent (RouteingB2BUA, RouteingBacktoBackUserAgent ) or InitiatingB2BUA. When the AS adopts the RouteingB2BUA or InitiatingB2BUA behavior mode, the session identifier (DialogID) on both sides of the AS is modified by the AS, and the DialogID on both sides of the AS will be different. [0003] figure 1 Schematic diagram of performing B2BUA behavior for AS, such as figure 1 A...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/08
CPCH04L65/1069H04L65/403
Inventor 高扬李世涛
Owner 泰兴市高桥炉业有限公司