Session Initiation for Multimedia Services

A system comprising:

• a processor of first communication service provider equipment;
• and
• memory accessible to the processor, the memory including instructions that, when executed by the processor, cause the processor to perform operations comprising:
• receiving a request to initiate a session between a first device and a second device, the second device associated with a particular user for a multimedia service provided by second communication service provider equipment, wherein the first device has access to a particular application to access the multimedia service from the second communication service provider equipment;
• and
• sending a message including a call invitation to the second device to initiate the session with the first device, wherein the call invitation includes location data related to a connection between the second device and the second communication service provider equipment for transfer of the particular application from the second communication service provider equipment to the second device.