Question: What transport protocols can be utilized for delivering the VoIP CC Protocol Data Unit (VoIP-CC-PDU) to the Lawful Interception Management Function (LEMF), as per national regulations?
Option 1: Only HTTP, due to its reliability in packet delivery
Option 2: Either SCTP or DCCP, for enhanced security features
Option 3: Solely ICMP, to ensure network congestion avoidance
Option 4: UDP or TCP, as dictated by national regulations
Explanation: The correct answer is Option 4 because the delivery of VoIP-CC-PDU to the LEMF utilizes either UDP (User Datagram Protocol) or TCP (Transmission Control Protocol), with the choice between them governed by national regulations, highlighting flexibility for varying legal and security requirements.