FIELD: communication equipment.
SUBSTANCE: mobile communication method comprising steps of: when an S-CSCF in an IMS receives a terminating signal directed to a UE, sending terminating signal from S-CSCF to an SCC-AS in IMS, terminating signal including call-type information indicating whether terminating signal is for voice communication or audio and video communication; sending a request signal including call-type information from SCC-AS to an HSS; and determining, by SCC-AS, a domain to which terminating signal is to be transferred, based on call-type information and a response signal received from HSS as a response to request signal.
EFFECT: high speed of establishing communication.
4 cl, 4 dwg
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