Motorola TETRA MTM800, Руководство пользователя по функциям

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D
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O G
roup
Cal
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DMO Group Call
General
In DMO, the MTM800 Enhanced can be used without your
Service Provider’s infrastructure.
Direct Mode allows communication with other terminals also
operating in Direct Mode, which are on the same frequency
and talkgroup as your MTM800 Enhanced.
You can receive a call:
• From the selected talkgroup
• From other users within talkback range (if configured by
your Service Provider). This is called an InterMNI (Mobile
Network identity) call.
• From an open group. (An open group is a super-group to
which all DMO groups belong.)
When you start a call, the members of the selected talkgroup
who have their units turned on, and are within the group
subscriber identity (as configured by the Service Provider),
will receive the transmission.
In DMO the MTM800 Enhanced can communicate with the
trunking system (and vice-versa) if the
Gateway option is
enabled in the MTM800 Enhanced.
To enhance the terminal’s DMO coverage area the DMO
group can link to a repeater if the
Repeater option is enabled
in the terminal. Additionally the GW + Rep (gateway and
repeater) communication mode can be used.
If Transmit Inhibit is activated while the terminal is set to
DMO, the PTT is disabled. You can only listen. For detailed
information on Transmit Inhibit, see page 41. DMO Talkgroup
selection is allowed when Transmit Inhibit is activated.
In DMO it is only possible to place Group Calls, Emergency
Group Calls and Private Half-duplex Calls.