Patent ID: 8572261
Filing Date: 2013-10-29
Classification: H04L

Abstract:
1. A User Equipment (UE) for communicating with an IP Multimedia Subsystem (IMS) network node utilizing Session Initiation Protocol (SIP) signaling, wherein the UE comprises a processor coupled to a memory that stores computer program instructions, wherein when the processor executes the instructions, the UE is caused to: set an IMS communication service identifier to identify one of a plurality of IMS communication services; set an IMS application reference to identify one of a plurality of IMS applications to be used for handling the identified one of the plurality of IMS communication services; and send to the IMS network node, a SIP message that includes the IMS communication service identifier and the IMS application reference, thereby enabling an IMS protocol stack in the IMS network node to utilize the IMS communication service identifier to forward the SIP message to the identified one of the plurality of IMS communication services, and enabling the identified one of the plurality of IMS communication services to utilize the IMS application reference to forward the SIP message to the identified one of the plurality of IMS applications.