Question: What is the primary purpose of the TMGI AVP in the context of MBMS bearer services?
Option 1: To authenticate user equipment
Option 2: To allocate IP addresses to mobile devices
Option 3: To identify a particular MBMS bearer service with a unique Temporary Mobile Group Identity
Option 4: To encrypt data transmission between the BM-SC and the UE
Explanation: The TMGI AVP is used to uniquely identify an MBMS bearer service, allowing for efficient management and routing of packets within the network. This is critical in ensuring that multimedia content is delivered correctly to the intended recipients.