Receiving Emergency Group Calls; Non-Tactical Emergency; Emergency Individual Calls (Private Or Ms-Isdn); Emergency Alarm - Motorola MTP830 S Feature User Manual

48 | Modes

Receiving Emergency Group Calls

The radio receives an Emergency Group Call from a selected pre-programmed group. An incoming call is indicated
by an appropriate tone, status icon, and red color of the display.

Non-Tactical Emergency

In Non-Tactical Emergency, the radio switches to a designated Emergency talkgroup when starting Emergency
Operations. This talkgroup is used for the complete duration of the Emergency Operations (you cannot change the
talkgroup).
In TMO, it is possible to configure the radio to make Emergency Non-Tactical Group Calls without sending
attachment. If this is set, the radio assumes implicit attachment after receiving a temporary address.
In DMO, the Non-Tactical Emergency proceeds on the same frequency as the previously selected talkgroup. The
service provider can designate any ITSI address to be used for Emergency Operations, (this can be an Open Group –
broadcast address).
After exiting from Non-Tactical Emergency, the radio goes back to the previously selected talkgroup.

Emergency Individual Calls (Private or MS-ISDN)

The Emergency Individual Calls are Simplex or Duplex Calls with emergency priority. On pressing the
EMERGENCY button, the radio initiates an Individual Call to the provisioned address (private or MS-ISDN). During
this kind of call all user indications are unavailable and all other services are rejected. Emergency Operation ends as
soon as the Emergency Individual Call is ended.
Related Links
Private Call on page 40
MS-ISDN on page 98

Emergency Alarm

The Emergency Alarm is a special status message sent to the infrastructure while starting the Emergency Operations.
The radio can wait for infrastructure acknowledgment for this alarm and attempts retries.
Each time the radio enters the Emergency Operation, it sends the Emergency Alarm. When the Emergency Alarm is
sent successfully, the respective audible tone sounds.
In addition, once the radio is in the Emergency Operation on pressing the E
alarm is sent (exception: during Hot Microphone transmission).
The message can be dispatched both in TMO and DMO.

Emergency SDS Status

Radio sends a status message with a preprogrammed value to the destination address set by your service provider.
Emergency SDS Status is available in TMO only. If no status acknowledgment or negative acknowledgment is
received, the radio retries sending the message. Status is not resend if Emergency Alarm or Hot Microphone is
configured.

Emergency Hot Microphone

The Hot Microphone allows you to talk without pressing the PTT button during Emergency Operations. The
transmission continues for a provisioned amount of time. Pressing the PTT button before the Hot Microphone time
expires ends the Hot Microphone operation. Then normal PTT operation in Emergency group call takes over (that is,
the transmission is ongoing for the time the PTT button is held).
Subsequent EMERGENCY button presses during the Emergency Operation restarts the Hot Microphone
transmission.
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button, an additional emergency
MERGENCY