When using a wired headset, use only Zebra wired headsets with a PTT button.
Press and hold
PTT
(or
Talk
on the headset) and listen for the talk tone.
If you hear a busy tone, release the button and wait a moment before making another attempt. Ensure that PTT Express and the WLAN are enabled.
Start talking after hearing the talk tone.
Holding the button for more than 60 seconds (default) drops the call, allowing others to make Group Calls. Release the button when finished talking to allow others to make calls.