Samsung SCH-R250ZRAMTR - Manual (Page 131)

Changing Your Settings 127
Call Settings
The Call Settings sub-menu lets you set call options such as Auto
Retry, Data rates for data calls, and more.
Call Answer
You can set your phone to answer incoming calls only when you press
; when you press any key on the keypad except , ,
or ; or when you open the flip.
Auto Answer
Auto Answer lets you set your phone to automatically answer calls
after from 1 to 5 seconds.
Auto Retry
Auto Retry automatically re-dials a number at an interval you select,
when there is no answer or the dialed party is busy. Depending upon
your location, the number of times your phone redials a number may
vary.