Question: In an Ambient Viewing Call for Mission Critical Video (MCVideo), what is the primary characteristic of how a 'viewed to' user's MCVideo UE handles the call?
Option 1: The 'viewed to' user's UE provides a visual alert for each incoming ambient viewing call.
Option 2: There is no indication on the 'viewed to' user's MCVideo UE about the ambient viewing call and its media transmission.
Option 3: The 'viewed to' user must manually accept each ambient viewing call before media transmission begins.
Option 4: Ambient Viewing Calls are not supported on 'viewed to' user's MCVideo UEs without a software update.
Explanation: This is correct because, by definition, an ambient viewing call in the context of Mission Critical Video (MCVideo) is designed such that the 'viewed to' user (the one transmitting media) has no indication on their MCVideo User Equipment (UE) about the call or the transmission of media. This ensures seamless and discreet monitoring, which is crucial for mission-critical applications.