English
The Emergency Alarm is a special status message sent to the dispatcher monitoring the selected group. This can be used in dispatch systems to highlight emergency calls.
Some systems do not support the Emergency Alarm feature when the user is in a “Local Area Service” area.
Pressing the Emergency button, even if Transmit Inhibit is activated, causes the MTP850 Ex/ MTP810 Ex to transmit immediately. The MTP850 Ex/MTP810 Ex must NOT be within the RF sensi- tive area when entering Emergency Mode.
Hot Microphone Feature
If the Hot Microphone feature was programmed into your MTP850 Ex/MTP810 Ex by your Service Provider, you can make an Emergency Group Call and talk to the dispatcher (and members of your group) without the need to press and hold the PTT.
The microphone will stay open for a time period (programmed by your Service Provider). The microphone will stay open until:
•the Hot microphone time period expires
•you press PTT during the Hot Microphone period
•you press the End key
At the end of the Hot Microphone the Emgcy Mic Ended message will be displayed and the MTP850 Ex/MTP810 Ex returns to the Emergency Mode. The Hot Microphone feature is disabled and PTT operation returns to normal.
If required you can resume Hot Microphone by pressing the Emergency button again.
Making an Emergency Group Call
To initiate or answer a call while in Emergency Mode:
•Press and hold PTT.
•Wait for the talk permit tone (if configured) and talk.
•Release PTT to listen.
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