BenQ M315 - Manual (Page 100)

88 Menus
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.
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.
Fixed Dialing Number
After this feature is activated, the phone will only be able to dial
numbers on the Fixed Dial Number list. If a number is not on the
list, calls cannot be made to this number.
When you activate or cancel this feature, you must enter the
PIN2 code.
Before activating the Fixed Dial Number feature, you must press
(View), then press (Option) and select Add to create a
Fixed Dial Number list. You must enter the PIN2 code, and then
add a new number to your Fixed Dial Number list.
After creating the list, you can view, edit and delete numbers in the
list.
If the PIN2 code is entered incorrectly three consecutive times,
the PIN2 code will be locked down. You will need the PUK2 code
to unlock the PIN2 code. Contact your network operator to obtain
the PUK2 code.