Samsung SPH-A640ZKAAFT - Manual (Page 160)

138 Section 3A: Trumpet Mobile Service Features: The Basics
Responding to Call Waiting
When you’re on a call, Call Waiting alerts you to incoming
calls by sounding two beeps. Your phone’s screen informs
you that another call is coming in and displays the caller’s
phone number (if it is available).
To respond to an incoming call while you’re on a call:
ᮣ
Press . (This puts the first caller on hold and
answers the second call.)
To switch back to the first caller:
ᮣ Press again.
Tip: For those calls where you don’t want to be interrupted, you
can temporarily disable Call Waiting by pressing
*70 before
placing your call. Call Waiting is automatically reactivated once
you end the call.
TALK TALK
TALK TALK