Section 12: push-to-talk (ptt), Before making your first push-to-talk call, Making and answering push-to-talk calls – Samsung Convoy SCH-u640 User Manual

Section 12: push-to-talk (ptt), Before making your first push-to-talk call, Making and answering push-to-talk calls | Samsung Convoy SCH-u640 User Manual | Page 144 / 186