Motorola TETRA MTM800 - Manual (Page 22)

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Making a DMO Group Call
1. Enter Direct Mode by selecting the Direct Mode option via the
menu.
2. If this is the required talkgroup and range, press and hold the PTT
button. Wait for the talk permit tone and then speak into the
microphone.
Release the PTT button to listen.
Receiving a DMO Group Call
You can receive a DMO Group Call only when your MTM800 is in
DMO.
Your MTM800 will display the caller’s private number or alias, and
the talkgroup name.
Exiting DMO
To exit DMO, select the Operating Mode option your MTM800
should be operating on.