Motorola PCS telephone - Manual (Page 45)

Using the Options Menu 43
Key Answer Only
This feature has two options, On or Off .
When a call is incoming, opening the phone normally answers it.
If you wish to open the phone without answering calls, set Key
Answer Only to
On . Then, if your network offers Caller Line
Identification and you are a subscriber, you can open your phone
to review the number or name of the caller before you answer. To
answer a call with Key Answer Only activated, press O, 1
through 9, or >.
To reject the call, press C.
When set to Off , opening the phone answers an incoming call.