Patent ID: 8948087
Filing Date: 2015-02-03
Classification: H04L,H04W,Y02D

Abstract:
1. A method for implementing domain selection during a terminated call, comprising: an application server (AS) sending a query request message to a home subscriber server (HSS); the HSS querying a packet switching (PS) domain mobility management network element to obtain information of a called terminal and/or a network accessed by the called terminal, wherein the PS domain mobility management network element is a mobility management entity (MME) and/or a serving general packet radio service support node (SGSN), and the information of the network accessed by the called terminal comprises IMS VOIP capability of a network area in which the called terminal currently registers, and the MME/SGSN sends a message to the HSS to indicate the IMS VOIP capability only when the HSS queries the change of the IMS VOIP capability, then the MME/SGSN sends a message to the HSS to indicate the IMS VOIP capability; the HSS feeding back the obtained information of the called terminal and/or the network accessed by the called terminal to the AS; and the AS selecting a domain to which a call message is to be routed according to the information of the called terminal and/or the network accessed by the called terminal.