Motorola XPR 6350 用户手册

If the Channel Free Indication feature is enabled, you will 
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.
OR
If the Voice Interrupt feature is enabled, press the PTT 
button to stop the current call from the transmitting radio and 
free the channel for you to talk/respond.

Press the PTT button to respond to the call. The LED lights 
up solid green.

Wait for the Talk Permit Tone to finish (if enabled) and speak 
clearly into the microphone.

Release the PTT button to listen.

If there is no voice activity for a predetermined period of 
time, the call ends.

You hear a short tone.

See Making a Private Call on page 18 for details on making a 
Private Call.

An All Call is a call from an individual radio to every radio on the 
channel. It is used to make important announcements requiring 
the user’s full attention.

Procedure:
When you receive an All Call:

A tone sounds and the LED blinks green. 

If there is no voice activity for a predetermined period of 
time, the All Call ends.

 If the Channel Free Indication feature is enabled, you 

will hear a short alert tone the moment the transmitting radio 
releases the PTT button, indicating the channel is now 
available for use.

You cannot respond to an All Call.
NOTE:  The radio stops receiving the All Call if you switch to a 

different channel while receiving the call.
During an All Call, you will not be able to use any 
programmed button functions until the call ends.