| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method and system for giving access to an IP multimedia subsystem to subscribers which communicate via an access communication network, pertaining to an preassembled portion. <P>SOLUTION: The method for giving to subscribers (UEs) access to the IP multimedia subsystem (IMS) contains a stage of giving access network data (MCC', MNC'), which identifies the access communication network (AN) to a home interface entity (HGGSN); a stage of transmitting messages, containing the access network data (MCC', MNC') from the home interface entity (HGGSN) to a serving means (HSS); a stage of comparing home network data (MCC, MNC) with the access network data (MCC', MNC'); a stage, when the result of the stage of comparison is false, of checking whether the subscriber (UE) is allowed to perform loaming based on a standard of a set of prescriptions; and a stage, when the result of the stage of checking is true, of transmitting the messages containing the access network data (MCC', MNC') to a call state control function means (CSCF). <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
