Method for realizing bridged collection of IP multimedia subsystem

A multimedia subsystem and bridging technology, applied in the direction of network connection, telephone communication, electrical components, etc., can solve the problem of no solution, and achieve the effect of expanding the scope of application

Active Publication Date: 2007-03-07
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0018] It can be seen from the above that the prior art provides an implementation scheme for IMS bridging when the calling party is an IMS user, but for other situations, such as implementing IMS bridging when the calling party is a PSTN user, no solution is given

Method used

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  • Method for realizing bridged collection of IP multimedia subsystem
  • Method for realizing bridged collection of IP multimedia subsystem
  • Method for realizing bridged collection of IP multimedia subsystem

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Embodiment Construction

[0039] The core idea of ​​the present invention is: the PSTN user initiates a call request to the I-CSCF through the MGCF of the IMS network of the own operator, and after receiving the call request, the I-CSCF knows the The types of the calling and called home networks and the operators of the calling home network. According to the types and operators of the calling and called home networks, the I-CSCF forwards the call request to the called.

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0041] Fig. 3 is the flow chart that realizes IMS bridging provided by the present invention, as shown in Fig. 3, its specific steps are as follows:

[0042] Step 301: The PSTN user initiates a call request to the I-CSCF through the MGCF of the IMS network of its home operator, and the call request message carries the calling and called numbers.

[0043] Step 302: After receiving the call req...

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Abstract

This invention discloses one IMS method, which comprises the following steps: PSTN user sends demands to operator IMS network MGCF; MGCF transfers the received calls to I-CSCF; I-CSCF receives calls demands to determine main and called part types and network operators according to call demands; transferring call demands to called part according to main and passive calls of network types and operator.

Description

technical field [0001] The invention relates to the field of IP multimedia subsystems, in particular to a method for realizing bridging of IP multimedia subsystems. Background technique [0002] The IP Multimedia Subsystem (IMS, IP Multimedia Subsystem) is a subsystem supporting IP multimedia services proposed by the Third Generation Partnership Project (3GPP, Third Generation Partnership Project) in the Release 5 standard. IMS mainly includes: call session control function (CSCF, Call Session Control Function), media gateway control function (MGCF, Media Gateway Control Function), media gateway, media resource function control part, media resource function processing part, egress gateway control function (BGCF , Breakout Gateway Control Function) and other functional entities. The MGCF is a functional entity that realizes the intercommunication between the IMS network and the circuit domain, and the Public Switched Telephone Network (PSTN). The BGCF is the boundary point b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M7/00H04L12/66
Inventor 杨雁飞黄华
Owner HUAWEI TECH CO LTD
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