Domain selection method and server
A server and user terminal technology, applied in the communication field, can solve problems such as poor user experience, long call connection time, and increased call delay
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[0051] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.
[0052] An embodiment of the present invention provides a domain selection method, which can be used for a Service Centralization and Continuity Application Server (SCC AS), and the SCC AS supports a MAP interface and has access The function of the mobile switching center (VisitedMobile Switching Center, vMSC) network element can interact with the HLR in the CDMA network. Such as figure 2 As shown, the domain selection method includes:
[0053] Step 201. Receive a registration information query request sent by the first CSCF, where the registration information query request includes the identifier of the called user terminal.
[0054] For example, the identifier of the user terminal may be the number of the user terminal, an IP address, or other codes that can uniquely ident...
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