Silent Emergency Mode; Emergency Group Call - Motorola MTM5400 Feature User Manual

Feature User Guide

3.6.2 Silent Emergency Mode

The Silent Emergency Mode is a type of emergency services that provides no audible indications and no keypad
tones at the entrance. All the display indications are as in the idle mode. However, the radio cannot use any
services except for:
• Receiving Ambience Listening
• Sending Silent Emergency Alarms
• Sending GPS location reports
If you try to activate any other feature, it is blocked and no indication is displayed.
If the Silent Emergency feature is enabled, the radio enters Silent Emergency Mode on pressing the EMERGENCY
button. After entering the Silent Emergency Mode, the radio guarantees itself to be in TMO Mode. The radio
stays in TMO Mode or switches to it, depending on the actual state. Once in TMO Mode, the radio sends Silent
Emergency Alarm.
If the radio is in a private or group call, the radio waits until the call ends and then enters the Silent
Emergency Mode.
The radio keeps re-sending the alarm until successful sending is confirmed. After the alarm is successfully delivered,
the radio stays in Silent Emergency Mode and waits for the Ambience Listening. On pressing the EMERGENCY
button again, while being in the Silent Emergency Mode, the radio sends the Silent Emergency Alarm (and does not
provide any audible or visible indications).
Your radio exits the Silent Emergency Mode, under the following conditions:
• Press MENU and then # key within 3 seconds.
• No success in sending the Silent Emergency Alarm and the maximum number of retries has been reached.
• The control room terminates the Silent Ambience Listening.
• The Ambience Listening is disconnected due to another reason.
If you turn off the radio in the Silent Emergency Mode, the radio switches to pseudo power off state. In this state, the
radio appears to be turned off. However, the radio is still on and in the Silent Emergency Mode. On turning the radio
on during the pseudo power off state, the radio acts as during turning on and still is in the Silent Emergency Mode.

3.6.3 Emergency Group Call

While in the Emergency Mode, you are able to initiate and receive an Emergency Group Call. This special call is
initiated by pressing the EMERGENCY button.
If a radio receives an incoming Group Call with emergency priority, the display shows that an Emergency Group Call
has been received, and a special audio alert is played. Your radio automatically switches to the Emergency Mode.
The audio for an Emergency Group Call always goes through the speaker (high audio), even if the low audio
is selected.
An Emergency Group Call can be configured as:
• Non-tactical — call on a talkgroup predefined by your service provider. The group might be different than
the one selected initially. After exiting from non-tactical Emergency Mode the radio is attached to the group
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