Exchange and use of globally unique device identifiers for circuit-switched and packet switched integration

A method in a network component for determining that a circuit switched (CS) call and a packet switched (PS) communication session originate from the same mobile device, the method comprising:

• receiving from a mobile device a first identity wherein the first identity is sent in an information element of a cellular protocol message;
• receiving from the mobile device a Session Initiation Protocol (SIP) message, the SIP message including a second identity in a format of a Unified Resource Name (URN) in an instance identifier (ID) contained within the SIP message;
• and
• determining that the CS call and the PS communication session originate from the mobile device when the first identity matches the second identity.

A network component for determining that a circuit switched (CS) call with the mobile device and a packet switched (PS) communication session originate from the same mobile device, the network component comprising a processor configured to:

• receive from a mobile device a first identity wherein the first identity is sent in an information element of a cellular protocol message;
• receive from a mobile device a Session Initiation Protocol (SIP) message, the SIP message including a second identity in a format of a Unified Resource Name (URN) in an instance identifier (ID) contained within the SIP message;
• and
• determine that the CS call and the PS communication session originate from the mobile device when the first identity matches the second identity.

A non-transitory computer readable medium having stored thereon computer readable code executable by a processor of a network component to cause the processor to:

• receive from a mobile device a first identity wherein the first identity is sent in an information element of a cellular protocol message;
• receive from a mobile device a Session Initiation Protocol (SIP) message, the SIP message including a second identity in a format of a Unified Resource Name (URN) in an instance identifier (ID) contained within the SIP message;
• and
• determine that the CS call and the PS communication session originate from the mobile device when the first identity matches the second identity.

A non-transitory computer readable medium having stored thereon computer readable code executable by a processor of a mobile device to cause the processor to:

• send, by the wireless radio, a first identity wherein the first identity is sent in an information element of a cellular protocol message;
• send, by the wireless radio, a Session Initiation Protocol (SIP) message, the SIP message including a second identity in a format of a Unified Resource Name (URN) in an instance identifier (ID) contained within the SIP message;
• and
• wherein the CS call and the PS communication session originate from the mobile device when the first identity matches the second identity.