Owner's Manual

Chapter 6: Making and Receiving PTT Calls
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6.5
Interaction with Silent or Sound Mode
When your phone’s ringer is set to silent or vibrate only, PTT calls are played over the phone’s
earpiece. To hear a PTT call, you should hold the phone to your ear as you do during a cellular
phone call. You can temporarily switch to the loudspeaker using the on-screen speaker on/off
button. The next PTT call again reverts to using the phone’s earpiece while the phone is in silent
mode.
You can set the phone to vibrate for incoming PTT calls if the incoming Call Vibrate setting is ON. For
more information on how to set incoming Call Vibrate, refer to the
Vibrate Call on page 159 section.
6.6
Interaction between PTT and Cellular Calls
Answering a Regular Phone Call while on a PTT Call
If you receive an incoming regular phone call while you are on a PTT call, you are presented with a
choice to either accept or reject the call according to the native device’s behavior (not controlled by
the PTT application). If you answer the cellular call, the PTT call is put in the background. The PTT
voice is lost during ringing; this is normal device behavior for a cellular call while in a data session.
If you rejoin the PTT call when the regular call ends, it comes to the foreground. The PTT call can also
end silently in the background.
If you receive an incoming regular phone call while you are on a PTT group call, you are presented
with a choice to either accept or reject the call according to the native device’s behavior (not
controlled by the PTT application). If you answer the cellular call, the PTT group call is put in the
background. The PTT voice is lost during ringing; this is normal device behavior for a cellular call
while in a data session.
If you rejoin the PTT group call when the regular call ends, it comes to the foreground. The PTT
group call can also end silently in the background.
Receiving a PTT Call When on a Regular Phone Call
If you receive a PTT call while you are on a regular call, the ongoing cellular call continues, and an
incoming PTT call is rejected, giving a busy signal. You receive a missed call alert along with an
alert tone, and a pop-up message is displayed to indicate that a PTT call occurred during the
cellular call.
After the current regular call ends, you can make a PTT callback to the caller from the missed call alert
displayed in the PTT application.
6.7
Call Behavior in Background
Incoming PTT Calls with Background Mode Turned OFF
While using other applications on the phone, an incoming PTT call lights up the display, the device
shows a notification from the application, and you hear an incoming call tone followed by the caller’s
voice. The notification shows the name of the contact or group calling.
Incoming PTT Calls with Background Mode Turned ON
When Background Mode is turned on and you receive an incoming PTT call, the PTT application
remains in the background; the display does not turn ON if it is OFF and you hear the caller’s voice.