Motorola PCS telephone Quick Reference page 45

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 . Then, if your network offers Caller Line
On
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 , opening the phone answers an incoming call.
Off
43
Using the Options Menu