AT&T 250 User Manual page 8

At&t trimline caller id telephone user's manual
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For Table/Desk and Wall Installation
1
Plug the coiled cord into the jack
on the base. Plug the other end
into the handset, then hang up.
2
Lift the handset and listen for a
dial tone. If you can't hear a
dial tone, see IN CASE OF
DIFFICULTY.
3
Set the Dial Mode switch on the
handset to
if you have tone
TT
dialing service or to
have dial pulse (rotary) service.
Your phone will work immediately after installation using the default
feature settings (see Feature Settings Summary on next page).
NOTE: If you subscribe to Caller ID services from your local telephone
service provider, you must follow the instructions in "Set Home Area Code"
on page 9 for your phone to properly recognize and dial calls, and you
may need to follow the instructions in "Set Local Area Codes" on page 10.
Coiled cord
if you
DP
Dial Mode
switch
INSTALLATION
7

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