Samsung SGH-X640 User Manual page 74

must enter the SIM lock code to use a different SIM
card.
FDN mode
(Menu 9.4.7)
If supported by your SIM card, Fixed Dialing Number
(FDN) mode restricts your outgoing calls to a limited
set of phone numbers. When this feature is enabled,
you can make calls only to phone numbers stored in
Phonebook. To use this feature, you must enter your
PIN2.
Change PIN2
(Menu 9.4.8)
If supported by your SIM card, the Change PIN2
feature changes your current PIN2.
Auto redial
(Menu 9.5)
Use this menu to set the phone to make up to ten
attempts to redial a phone number after an
unsuccessful call.
Voiceclarity
(Menu 9.6)
Use this menu to remove extraneous noise and
increase call quality to allow the other person on the
phone can hear you clearly even if you are in a noisy
place.
Active folder
(Menu 9.7)
Use this menu to set whether to answer incoming calls
by opening the phone.
Side key
(Menu 9.8)
Use this menu to set how the Volume keys act when a
call comes in.
• Reject: you can reject calls by holding down the
keys.
• Silence: you can mute the ringer by holding down
the keys.
Anykey answer
(Menu 9.9)
Use this menu to set whether to answer incoming calls
by pressing any keys, except [ ].
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