Make a group call
To make a call to the default group, press the volume up key. A tone
sounds indicating that the access is granted, and the phone displays
your nickname and group name.
To make a call to a nondefault group, select
in the push to talk
menu, scroll to the desired group, and press the volume up key.
Press and hold the volume up key the entire time you are talking, and
hold the phone in front of you so that you can see the display. When
you have finished, release the volume up key. Talking is allowed on a
first-come, first-served basis. When someone stops talking, the first
person to press the volume up key can talk next.