Question: What is a prerequisite for utilizing an MC (Mission Critical) Gateway UE, in terms of network infrastructure, to facilitate communication between non-3GPP devices and an MC Server?
Option 1: A dedicated TDM (Time Division Multiplexing) network
Option 2: An IP (Internet Protocol) network with a single, fixed IP address
Option 3: An IP (Internet Protocol) network capable of reaching a range of IP addresses through the MC Gateway UE
Option 4: A proprietary, non-standard network protocol stack
Explanation: The correct answer requires understanding the role of an MC Gateway UE in facilitating communication between non-3GPP devices and an MC Server. An IP network that can reach a range of IP addresses through the MC Gateway UE is necessary for forwarding both signaling information and media plane traffic efficiently, highlighting the importance of flexible IP routing capabilities in this context.