Motorola TETRA MTM800, Feature User Manual, Page: 37 / 382

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Ambience Listening (AL)
This feature, if enabled by your Service Provider, allows a
console operator (or dispatcher) to establish a special call
with a specific terminal to monitor voice activity in the local
vicinity. The call is setup without any indication to the affected
terminal, and any lower priority ongoing voice call or packet
data transfer may be pre-empted.
After accepting the call, the terminal transmits in a half-
duplex Private Call without any action from or indication to
the user. The Ambience Listening call shall automatically end
when the user initiates any voice call and uses the terminal
normally.
Cancelling a Call
Choose one of the following, as relevant:
• Press . If you wish to make a new call, start it at once.
• Wait to answer the call. After a time-out set by your
Service Provider, the call number will be forwarded to the
missed call list.
• Press Reject soft key (displayed in an incoming full-duplex
call). The call number will be forwarded to the missed call
list.
Using In-call Features
Loudspeaker
The loudspeaker feature allows you to
hold impromptu meetings in Phone,
PABX, and full-duplex Private Calls.
During loudspeaker operation, you may
either speak or listen, but you cannot do
both at the same time.
1. To activate loudspeaker, press Spkr . The display shows
Speaker ON .
Phone in Use
David
6754321
Spkr
Mute