Samsung SGH-E630 - Auto Redial; Voiceclarity

Phone settings
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Note : Not all SIM cards have a PIN2. If your SIM card
does not, this menu option is not displayed.
Auto redial
With the Auto redial function, the phone makes up
to ten attempts to redial a phone number after an
unsuccessful call.
Note : The interval between two call attempts varies.
The following options are available:
Off : the number is not redialled.
On : the number is redialled automatically.
Voiceclarity
This menu option makes a sound loud and clear.
It is useful when you are in a noisy place.
The following options are available:
Off : the phone does not turn on the voiceclaity.
On : the phone turns on the voiceclaity when you
are in a noisy place.