G.12 MCVideo private emergency alert state
24.2813GPPMission Critical Video (MCVideo) signalling controlProtocol specificationRelease 18TS
Table G.5-1provides the semantics of the MCVideo private emergency alert (MVPEA) state values. This is an internal state of the MCVideo client and is managed by the MCVideo client. These states aid in the managing of the information elements of MCVideo emergency private calls and MCVideo emergency alerts and their cancellations. MCVideo private emergency alerts are targeted to an MCVideo user.
Table G.12-1: MCVideo private emergency alert state
|
MCVideo emergency alert state values |
State-entering events |
Comments |
|
MVPEA 1: no-alert |
initial state emergency alert cancelled emergency alert request denied |
emergency alerts targeted to an MCVideo user can be cancelled in several ways: MCVideo emergency private call cancel request with <alert-ind> set to "false" timeout of private call inactivity timer end of call (if system policy) MCVideo emergency state: may be set or clear, depending on MCVideo emergency call status |
|
MVPEA 2: emergency-alert-confirm-pending |
emergency alert request sent |
emergency alerts can be requested as an optional part of a MCVideo client’s request to initiate an MCVideo emergency private call, in which case the request has an <alert-ind> element set to "true". MCVideo emergency state: is set |
|
MVPEA 3: emergency-alert -initiated |
emergency alert response (success) received |
MCVideo emergency state: is set |
|
MVPEA 4: emergency-alert-cancel-pending |
emergency alert cancellation request sent by alert originator |
MCVideo emergency state: is clear |
Annex H (informative):
On-network routing considerations