Applications
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Selecting a Talk Group
One of 32 Talk Groups can be selected by PTT Express users. However, only one talk group may be enabled at a
time on the device. Touch one of the 32 Talk Groups. The selected Talk Group is highlighted.
PTT Communication
In order to use a PTT Key with PTT Express, remap BUTTON_L2 key to any available physical key, such as
LEFT_TRIGGER_1, RIGHT_TRIGGER_1, SCAN, P1 or P2. By default, a PTT button is not assigned. When the
wired headset is used, Group Calls can also be initiated using the headset Talk button. For information on how to
remap a key, refer to the MC33XX Integrator Guide.
PTT communication may be established as a Group Call.
Creating a Group Call
1. Press and hold the Scan button (or the Talk button on the headset) 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.
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.
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. Press and release and then press and hold the Talk 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.
5. Release the button when finished talking.
Disabling PTT Express Voice Client Communication
1. Swipe up from the bottom of the Home screen and touch .
2. Slide the Enable/Disable Switch to the OFF position. The button changes to OFF.
3. Touch .
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.
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