Push-To-Talk (PTT) Button
A
The
PTT
button on the side of the microphone
serves two basic purposes:
• While a call is in progress, the
PTT
button allows
the radio to transmit to other radios in the call.
Press and hold down
PTT
button to talk. Release
the
PTT
button to listen. The microphone is
activated when the
PTT
button is pressed.
• While a call is not in progress, the
PTT
button is
used to make a new call. See
on page 50 for more information.
Identifying Radio Controls
32
English
Summary of Contents for APX MOBILE O3 CONTROL HEAD
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