A system and method for realizing the call service based on voice service continuity

A technology for call service and voice service, which is applied in the field of network communication and can solve problems such as call failure
CN101018400AActive Publication Date: 2007-08-15HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2007-08-15

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Abstract

The provided system and method for calling business based on dialogue business continuity comprises: an application server with IMS-NeDS function generates indication message for direct succeeding the calling to the called terminal when determining it requires to transmit the calling from IMS domain to CS domain and succeed to the called terminal, and enables network device in system clear decide whether this calling is anchored in IMS domain. This invention prevents repeated route cycle for calling, and improves calling success ratio.
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Description

technical field

[0001] The invention relates to the technical field of network communication, in particular to a system and method for realizing call service based on voice service continuity. Background technique

[0002] From the stage of 3GPP R5 (3rd Generation Partnership Project, the third generation mobile communication standardization partner project), the UMTS (Universal Mobile Telecommunications System) core network is divided into CS (Circuit Switching), PS (Packet Switching) and IMS (IP Multimedia Subsystem) ) three subsystems.

[0003] The CS domain (Circuit Switched Domain, Circuit Switched Domain) is used to provide the connection of the circuit service to the user. The CS domain mainly includes: MSC (MSC Server / CS-MGW, Mobile Switch CenterServer / CS-Media GateWay, mobile switching center server / circuit domain-media gateway), GMSC (Gateway MSC, gateway mobile switching center) and IWF (InterWorking Function , interworking function). Among them, the MSC comple...

Claims

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