Sprint Nextel SCP-8400 - Manual (Page 254)

238 Section 3A: Sprint PCS Service Features – The Basics
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. Press .
2. Enter the number you want to call.
3. Press or .
To permanently block your number, call Sprint Customer
Service.
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