G.1 MCVideo emergency state

24.2813GPPMission Critical Video (MCVideo) signalling controlProtocol specificationRelease 18TS

The MCVideo emergency state is managed by the MCVideo client and MCVideo user. High-level characteristics of this state are captured in table G-1.1.

Table G.1-1: MCVideo emergency state

MCVideo emergency state

State-setting events

State-clearing events

Comments

Values:

"set": MCVideo user is in a life-threatening situation

"clear": MCVideo user is not in a life-threatening situation

Managed by:

MCVideo client and MCVideo user

MCVideo emergency alert initiated

MCVideo emergency group call initiated

MCVideo emergency private call initiated

MCVideo emergency alert cancelled (by initiator)

MCVideo emergency alert cancelled (by authorised-user)

MCVideo emergency call cancelled by initiator (if there is no outstanding MCVideo emergency alert)

MCVideo user manually clears the state

While the MCVideo client is in the MCVideo emergency state, all group calls it makes will be MCVideo emergency group calls, providing the group is authorised for MCVideo emergency group calls.

While in an emergency group call while in the MCVideo emergency state, the MCVideo user is an "emergency talker" and will have pre-emptive priority over non-emergency talkers in the emergency group call.