Applications
82
PTT Communication
PTT communication may be established as a Group Call. When PTT Express is enabled, the P3 button is assigned
for PTT communication.
Figure 66 PTT Button
Creating a Group Call
To create a group call:
1. Press and hold the PTT button and listen for the talk tone to play.
If a busy tone is heard, release the button and wait a moment before making another attempt. Ensure that PTT
Express and the WLAN are enabled.
2. Start talking after the talk tone is heard.
3. Release the button when finished talking.
Responding with a Private Response
The Private Response can only be initiated once a Group Call has been established. The initial Private Response
is made to the originator of the Group Call.
1. Wait until an access tone is heard.
2. Within 10 seconds, double-press the PTT button, and listen for the talk tone to play.
3. If a busy tone is heard, release the button and wait a moment before making another attempt. Ensure that PTT
Express and the WLAN are enabled.
4. Start talking after the talk tone plays.
NOTE: This section describes the default PTT Express client configuration. See the PTT Express V1.2 User
Guide for detailed information on using the client.
NOTE: If the user holds the button for more than 60 seconds (default), the call is dropped allowing others to
make Group calls. The user should release the button when finished talking to allow others to make calls.
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