If you select On, you can set network name displayed on the phone
as you want.
You can set the light-up duration you want whenever you press a
key.
LCD contrast
You can set the rate of serial port to 19200bps for using the
application between PC and fax.
You can set the rate of serial port to 115200bps for using PC
application for GPRS call and Data call.
You can select the language will be displayed.
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You can set the brightness of LCD you want by
pressing U , D .