| 摘要 |
<p>A method is described for handling the integrity of a service in IP Multimedia Subsystem (IMS). The method comprises the steps of: a S-CSCF serving a user terminal comprising a predetermined number of call services receiving a SIP register message; the S-CSCF retrieving in response to the SIP register message the user service profile associated with the first user terminal, the user service profile comprising initial Filter Criteria (iFC) arranged to route SIP messages for via a stateless application server, the server managing the integrity of the SIP messages during the establishment of a call session.</p> |
