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2. To de-activate loudspeaker, press Erpce. The display
shows Speaker OFF.
To burst into conversation while the other party is talking,
press and hold PTT. You will hear a tone. Start talking, and
release PTT to listen again to the other party.
Muting/Unmuting the Microphone
During a Phone, PABX, or full-duplex Private Call, use the
mute feature to:
• hold conversation without being heard by the caller
• silence possible background noise in your area
1. Press Mute. The display shows Mute is ON. The
microphone is muted. You can hear the incoming audio, but
the caller cannot hear any speech coming from your
MTM800 Enhanced.
2. To speak, press
Unmut. The display shows Mute is OFF.
The microphone is on.
Covert Mode
If configured by your Service Provider the Covert Mode gives
to you the ability to greyscale and dim the display all visible
and audible MTM800 Enhanced alerts and notifications. This
feature makes the MTM800 Enhanced effectively
unnoticeable even in a silent and dark environment.
To Enter the Covert Mode:
• Press the Cover Mode one-touch button (if programmed
by your Service Provider).
• Select Covert Mode in the Security menu (refer to “Covert
Mode” on page 114).
Local Area Service
This mode, also called Fallback Mode, allows more than one
terminal from the same site to communicate when the link
between the site and network central controller fails.
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