Samsung SCH-I830MSASPR - Manual (Page 197)

Section 3A: Sprint PCS Service Features: The Basics 189
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Call Waiting
You can answer an incoming call while on an existing call. If
you are on an existing call and another call is received, a tone
is heard and a call waiting message is displayed on the
screen. If the caller is stored in the address book, their name is
also displayed.
Answering a waiting call
To respond to an incoming call while you’re on a call:
1. Tap the Answer button. The phone connects to the
other call while placing the existing caller on hold.
2. Tap the button again to switch back over to the
original caller.
Using Caller ID
Caller ID allows people to identify a caller before answering
the phone by displaying the number of the incoming call. If
you do not want your number displayed when you make a
call, just follow these easy steps.
To block your phone number from being displayed for a specific
outgoing call:
1. Tap .
2. Enter the number you want to call.
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.