Motorola E816 - Manual (Page 49)

PAGE 48 MANAGING MULTIPLE CALLS PUSH-TO-TALK (PTT) CALLS
Managing Multiple Calls
Your phone can handle two calls at the same time.
While you are on a standard wireless or PTT call, you can
receive or place another standard wireless or PTT call at
the same time.
Erasing PTT Call History
PTT calls are including in the recent calls lists along with
standard wireless calls. You can erase them just as you
can erase other calls.