PowerTrunk DT-400, Руководство пользователя

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User Manual
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option, provided that this option has been pre-programmed. You may choose a new work
network from the list of permitted networks available.
9.6 Supplementary services
The following TETRA supplementary services are also available in your MDT-400 / DT-410
terminal (none of them requires any additional action on the part of the user in the Options
menu):
- Late entry:
This supplementary service enables the device to join a group call that is already in
progress.
- Ambience listening:
Ambience listening enables a control centre or dispatcher to listen in to a unit and hear
what is going on around it, without giving the user any visual or acoustic indication of this
call. Ambience listening is only possible is the unit is not already occupied with another
call. Likewise, the supplementary ambience listening service does not prevent the
affected user from making or receiving other calls.
-
DGNA: Dynamic group assignment. Both individually and group addressed DGNA
groups are supported
-
Fallback mode (local mode)
:
MDT-400 / DT-410 support working in a cell in local mode (disconnected from the rest of
the system) indicating this situation to the user through the MMI.
The equipment will avoid registering in local mode cells unless there is no other available
cell. The services available in this mode will depend on the system configuration.
Consult your supplier about other services and special options available.