User's Guide

transmitting radio releases the PTT button, indicating
that the channel is free for you to respond. Press the
PTT button to respond to the call.
The call ends when there is no voice activity for a
predetermined period.
The call initiator can press to end a Group Call.
6.8.8.2
Responding to Unaddressed Calls
When you receive an Unaddressed Call:
• The green LED blinks.
• A momentary tone sounds.
• The text line shows Unaddress Call, the caller alias,
and the group call alias.
• Your radio unmutes and the incoming call sounds
through the speaker.
1 Do one of the following:
• If the Channel Free Indication feature is enabled,
you hear a short alert tone the moment the
transmitting radio releases the PTT button,
indicating the channel is free for you to respond.
Press the PTT button to respond to the call.
• If the Voice Interrupt feature is enabled, press the
PTT button to interrupt the audio from the
transmitting radio and free the channel for you to
respond.
The green LED lights up.
2 Do one of the following:
• Wait for the Talk Permit Tone to end and speak
clearly into the microphone if enabled.
• Wait for the PTT Sidetone to end and speak
clearly into the microphone if enabled.
3 Release the PTT button to listen.
The call ends when there is no voice activity for a
predetermined period.
6.8.9
Open Voice Channel Mode (OVCM)
An Open Voice Channel Mode (OVCM) allows a radio that
is not preconfigured to work in a particular system to both
receive and transmit during a group or individual call.
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