User`s manual

Menus 157
Call Waiting
If there is an incoming call when you are in the middle of another
call, the screen will display the number of the incoming call and call
waiting message to alert you. You can activate, cancel, or view the
status of this feature from this menu.
8 You must apply to the network operator for the call waiting
service in order to use this feature.
Auto Redial
If there is no answer at a number you have dialed, the phone will
automatically redial.
Show Number
You can decide whether or not to display your phone number on
the recipient's phone when you make a call.
On: When you call someone, the recipient's phone will display your
phone number.
Off: Your phone number will not be shown on the recipient's
phone.
8 If this feature is turned off, you may not be able to make phone
calls in certain countries, such as Singapore and China.
Preset: Whether your phone number will be displayed on a
recipient's phone will be determined by the default set by the
network operator.