Question: What underlying capability enables direct off-network video pulling between two Mission Critical Video (MCVideo) clients without involving the telecom network?
Option 1: eMBMS (Evolved Multimedia Broadcast Multicast Services)
Option 2: ProSe (Proximity Services)
Option 3: IMS (IP Multimedia Subsystem)
Option 4: PTT (Push-To-Talk) over Cellular
Explanation: Off-network video pulling between MCVideo clients relies on proximity services, which allow for direct device-to-device communication without the need for infrastructure support from the telecom network. This is precisely what ProSe (Proximity Services) capabilities provide, enabling devices to discover and communicate with each other directly when in close proximity.