A method and device for selecting a called access domain

Abstract

The invention discloses a selection method and device for a called access domain and relates to the technical field of communication. When a called client accesses an IMS network from a wifi network to carry out voice communication, the IMS network is enabled to determine a called access domain of a called user so that a call failure of a voice communication service can be prevented. The method includes the following steps: when an invite message sent by a calling client is received, an access type identification of the called client is triggered and obtained and whether the identification is a wifi identification is detected, wherein the wifi identification represents that the called client accesses the IMS network from the wifi network; and when the access type identification of the called client is determined to be the wifi identification, the invite message is routed in an IMS domain so that the invite message is routed in the IMS domain to the client. The selection method and device for the called access domain are mainly applied to a selection procedure of a called access domain.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for selecting a called access domain. Background technique [0002] At present, the voice call service is one of the important services of operators. In order to deploy VoLTE (Voice over Long Term Evolution, voice long-term evolution), operators choose IMS (IP Multimedia Subsystem, IP Multimedia System) network as the core network. Among them, IMS is an access-independent session control system that supports session control in various packet-switching access scenarios. For example, the supported access scenarios include: LTE (Voice over Long Term Evolution, long-term evolution), wifi (wireless fidelity, Wireless Fidelity), HSPA (High-Speed ​​Packet Access, High-Speed ​​Packet Access), etc., the IMS network can implement session control through these access scenarios. As wifi has gradually become an important technology for indoor coverage, VoWi...

AI Technical Summary

Problems solved by technology

And when the access scenario of the user terminal is wifi, that is, accessing the IMS network from the wifi network, and the user terminal is used as the called party, it also faces the above-mentioned problem of selecting the called access domain, and VoWiFi, as an emerging The solution for the voice call service does not have a corresponding called access domain selection scheme, and when the above process is used to select the called access domain, the called client cannot be found, that is, the called access domain cannot be selected , causing the voice call service call to fail

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