Systems and methods for managing different types of registrations for IMS services on SIMs of a wireless communication device

A wireless communication device, comprising:

• a processor configured to be coupled to at least one subscriber identification module (SIM) that supports Internet Protocol Multimedia Subsystem (IMS) services, wherein the processor is configured with processor-executable instructions to:
• access network operator policies stored in the at least one SIM;
• identify enabled IMS services for each of the at least one SIM;
• identify a registration type for each enabled IMS service on each of the at least one SIM, wherein the registration type is identified based on the accessed network operator policies;
• determine whether to perform a single registration or a dual registration for the at least one SIM;
• perform the determined registration using the accessed network operator policies;
• and
• maintain registration of the enabled IMS services for each of the at least one SIM.

A wireless communication device, comprising:

• means for accessing network operator policies stored in at least one subscriber identification module (SIM) that supports Internet Protocol Multimedia Subsystem (IMS) services;
• means for identifying enabled IMS services for each of the at least one SIM;
• means for identifying a registration type for each enabled IMS service on each of the at least one SIM, wherein the registration type is identified based on the accessed network operator policies;
• means for determining whether to perform a single registration or a dual registration for the at least one SIM;
• means for performing the determined registration using the accessed network operator policies;
• and
• means for maintaining registration of the enabled IMS services for each of the at least one SIM.

A non-transitory processor-readable storage medium having stored thereon processor-executable instructions configured to cause a wireless communication device processor to perform operations comprising:

• accessing network operator policies stored in at least one subscriber identification module (SIM) that supports Internet Protocol Multimedia Subsystem (IMS) services;
• identifying enabled IMS services for each of the at least one SIM;
• identifying a registration type for each enabled IMS service on each of the at least one SIM, wherein the registration type is identified based on the accessed network operator policies;
• determining whether to perform a single registration or a dual registration for the at least one SIM;
• performing the determined registration using the accessed network operator policies;
• and
• maintaining registration of the enabled IMS services for each of the at least one SIM.