Sony SCP-3810 - Manual (Page 118)

106 3A. Sprint Service: The Basics
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, follow these steps.
1. Press .
2. Enter the number you want to call.
3. Press .
To permanently block your number, call Sprint
Customer Service.
Call Waiting
When you are 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 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
* 7 0 before placing your call. 
Call Waiting is automatically reactivated once you
end the call.