Samsung SGH-D500 Manual page 180

Settings
Hide number: your number does not display on the
other person's phone.
Send number: your number is sent each time you
make a call.
Band selection
(Menu 9.5.6)
For the phone to make and receive phone calls, it must
register with an available network. Your phone can
handle any of the following types of networks:
• GSM 1900
• Combined GSM 900/1800
• GSM 900/1800/1900
The country where you purchased your phone
determines the default band that it uses. When you
travel abroad, you must remember to change to an
appropriate band.
Press the Up or Down key until the appropriate option
highlights and press the Select soft key.
When you select a new band, your phone automatically
searches for all available networks. Your phone registers
with a preferred network within the band.
Active line
(Menu 9.5.7)
Some SIM cards may used with 2 subscriber numbers.
This function is available only if your SIM card supports
it.
This menu allows you to select the line to be used to
make calls. However, calls can be answered on both
lines, regardless of the selected line.
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