AT&T 7720 사용자 설명서

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CALLER ID SET UP
Programming Local Area Codes
The Display Dial feature allows you to dial numbers recorded in your Call 
History with a single button press.  (See “Display Dial” in the CALLER ID
FEATURES section of this manual.)
To use this feature, you need to program one or more area codes, so that
the telephone knows whether to dial an area code or “1” as part of the
number.
You must program your home area code in order for Display Dial to work 
correctly.  Then, if you receive a call from your home area code, the
screen displays only the seven digits of the number you’re calling (without
an area code).  When you press 
D
, the phone dials the seven
displayed digits.
You can also program in up to two other local area codes.  These are area
codes that do not require dialing a “1” before them.  After programming,
if you receive a call from one of these area codes, the screen displays the
10 digits (three digits of area code plus seven digits of phone number).
When you press 
D
, the phone dials 10 digits, without inserting a
“1” before the area code.
If you receive a call from an area code not programmed in the phone, you
will see 10 digits on the screen (the area code and the phone number).
The phone will automatically dial “1” before the number when you press
D
.
To program your local area codes:
1
Press 
U.
2
Use the softkey to select 
NEXT.
3
Use the softkey to select 
SETUP.
4
Continue to select 
NEXT until the screen displays AREA CODE 1.  Use
the keypad to enter your home area code.
5
Select 
CODE 2 to reach AREA CODE 2 (the screen displays any
current local area code stored here).
6
Select 
CODE 3, to reach AREA CODE 3 (the screen displays any
current local area code stored here).
7
Use the keypad to enter the three-digit local area code.
8
Press 
U to exit, or select NEXT to go to the next feature.