Emergency Individual Calls (Private Or Ms-Isdn); Emergency Alarm; Emergency Sds Status; Emergency Hot Microphone - Motorola MTP830 S Product Information Manual

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.

Emergency Alarm

The emergency alarm is a special status message sent to the infrastructure while starting the Emergency Operations.
The radio may wait for infrastructure acknowledgment for this alarm and attempts retries.
Each time the radio enters the Emergency operation, it sends an emergency alarm. When an emergency alarm is sent
successfully, the respective audible tone sounds.
In addition, once the radio is in the Emergency Operation on pressing the EMERGENCY button, an additional
emergency 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 up in the codeplug.
Emergency Short Data Service (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.
If a talk permit is granted to another member of the group, the Emergency Call received tone is played. If configured,
the radio automatically attempts to get talk permit again.
Pressing End key or END key ends the Hot Microphone operation.
SOFT

Alternating Hot Microphone

The Alternating Hot Microphone is an enhancement of the Hot Microphone feature. It allows you to have the Hot
Microphone switched on and off alternately.
If this feature is enabled, you can initiate the Alternating Hot Microphone by pressing the
The Alternating Hot Microphone terminates when one of the following conditions is met:
• The radio exits the Emergency Mode.
• The Alternating Hot Microphone timer expires.
• The button is pressed.
PTT
• The right SOFT key is pressed (only during the transmission timeslot).
To skip your transmission timeslot and jump to a receiving timeslot, press END key.
Note: When the radio goes out of the service, it enters the receiving mode and the Alternating Hot
Microphone is on hold. When the radio is back to the service, the Hot Microphone transmission and the
Alternating Hot Microphone resume.
Services and Features | 33
button.
EMERGENCY
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