Question: In 3GPP2 systems, what is a key characteristic of P-CSCF discovery procedures during the establishment of connectivity towards the 3GPP2 IP-CAN?
Option 1: P-CSCF discovery is mandatory as part of the initial connectivity setup.
Option 2: Discovery of P-CSCF is not supported as part of establishing connectivity.
Option 3: P-CSCF discovery relies on dedicated DNS queries specific to 3GPP2 IP-CAN.
Option 4: It always falls back to default P-CSCF addresses if discovery fails.
Explanation: In the context of 3GPP2 systems, a notable exception in the P-CSCF discovery procedures is that discovering the P-CSCF as part of establishing connectivity towards the 3GPP2 IP-CAN is explicitly not supported. This highlights a specific technical implication for telecom networks, particularly affecting how User Equipment (UE) might initiate sessions or manage connectivity in such environments.