Motorola XPR 4380 用户手册

Use the Quick Text Message or Call Alert features to contact an 
individual radio. See Text Messaging Features on page 26 or 
Call Alert Operation on page 21 for more information.

Press the Channel Rocker to select the channel with the 
active subscriber ID.

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

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

Release the PTT button to listen. When the target radio 
responds, the green LED blinks.

If the Channel Free Indication feature is enabled, you will 
hear a short alert tone the moment the target radio releases 
the PTT button, indicating the channel is free for you to 
respond. Press the PTT button to respond.
OR
If there is no voice activity for a predetermined period of 
time, the call ends.

You hear a short tone.

This feature allows you to transmit to all users on the channel. 
Your radio must be programmed to allow you to use this feature.

Press the Channel Rocker to select the channel with the 
active All Call group ID.

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

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

 Wait for the PTT Sidetone to finish (if enabled) and 

speak clearly into the microphone.