AT&T Trimline 260 - Manual (Page 5)

2
About Home Area Code and Local Area Codes
Always program your home area code, and, if you need them, up to four
local area codes (see “Set Home Area Code” and “Set Local Area Codes” on
pages 11 and 12). Programming these area codes changes how numbers
are displayed in the call history, and allows for correct operation of the
Display Dial feature.
Refer to the chart below to determine whether you will need to program
Local Area Codes after you install your phone.
If you dial… For… Then, in Steps 2-4
on page 12
11 digits All calls outside Make no entry
( 1 + area code + phone number) your own area code
10 digits Some calls outside Enter area codes that
(area code + phone number) your own area code do not require a “1”
10 digits All calls within your Enter your own area
(area code + phone number) own area code code
BEFORE YOU BEGIN
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