User Manual

Table Of Contents
Related Links
Private Call on page 50
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 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 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.
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 EndSOFT key or END key ends the Hot Microphone operation.
Alternating Hot Microphone
The Alternating Hot Microphone is an enhancement of the Hot Microphone. After activation, the radio
alternately enters transmission phases (your microphone is active) and reception phases (you can only
listen) for an amount of time precisely determined by your service provider.
If this feature is enabled, you can initiate the Alternating Hot Microphone by pressing the EMERGENCY
button. If you want to finish earlier or skip the transmission phase, press the END key.
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 PTT button is pressed.
The upper SOFT key is pressed (only during the transmission phase).
NOTICE: When the radio goes out of the service, it enters the reception phase 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.
Chapter 3: Modes
60 Send Feedback