Question: In a 3G network utilizing 3G direct tunnel functionality with the GGSN (Gateway GPRS Support Node), what is the requirement for the GGSN regarding interception of content of communication?
Option 1: The GGSN may choose to perform interception based on its configuration.
Option 2: Interception is not required if the target UE (User Equipment) is roaming.
Option 3: The SGSN (Serving GPRS Support Node) takes over interception duties in all cases.
Option 4: The GGSN shall perform the interception of content of communication.
Explanation: According to the specified conditions, when a 3G network employs 3G direct tunnel functionality with the GGSN, it mandates the GGSN to handle the interception of content of communication. This ensures seamless and regulated monitoring across the network, particularly relevant for lawful interception purposes, even in scenarios involving roaming agreements and handovers between different SGSNs.