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Making an Emergency Group Call
To initiate or answer a call:
1. Enter Emergency Mode by pressing the Emergency button.
2. Press and hold PTT.
3. Wait for the talk permit tone (if configured) and talk.
4. Release PTT to listen.
Receiving an Emergency Group Call
1. The display shows Emgcy In Use and the caller’s identity
as a private number or an alias.
2. The caller’s voice will always sound via the speaker (unless
an external earpiece is connected to the terminal).
If configured by your Service Provider, the screen
background will be red.
• If the incoming call is an InterMNI call in Emergency
Mode, you can view network information by pressing
Optns and selecting Network.
• If the incoming call is an InterMNI call not in Emergency
Mode, you can view network information by pressing
Network.
Your MTP850 enters TMO by pressing the Emergency button
(if configured by your Service Provider). The terminal attaches to
the predefined talkgroup and starts the Emergency Group Call. If
the predefined talkgroup is invalid the terminal attaches to the
last selected talkgroup.
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