User guide

Getting Started
13
Locking/Unlocking the Keys/Buttons
Press .
Selecting Your Network
Before you start operating your MTH800, you can select the
network you want your
MTH800 to be registered to. For
detailed information, see “Networks” on page 101.
How to Hold Your MTH800
The terminal has two microphones: a top microphone for
half-duplex dispatcher calls and a bottom microphone for full-
duplex telephone-like calls.
A call can be placed in high or low audio. To activate low or
high audio, see page 21.
In high audio the user transmits via the top microphone and
listens via the internal speaker.
In low audio the user speaks into the bottom microphone and
listens via the earpiece.
Group and Private Calls are half-duplex calls and can be
placed in high or low audio.
Phone, PABX, and full-duplex Private Calls are placed in low
audio. The speakerphone feature allows to hold Phone,
PABX, and full-duplex Private Calls via the MTH800 internal
speaker.
When there is an incoming call and the keypad is locked, you can still use
PTT, Rotary knob, , and
.
The Emergency button is not locked. Pressing the Emergency button
unlocks all keys.
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6802972C35.book Page 13 Monday, August 16, 2004 9:22 PM