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Telephone base and charger installation
If you subscribe to high-speed Internet service (Digital Subscriber Line - DSL) 
through your telephone lines, you must install a DSL filter between the 
telephone base and the telephone wall jack. The filter will prevent noise 
and caller ID problems caused by DSL interference. Please contact your DSL 
service provider for more information about DSL filters.
Install the telephone base and charger as shown below.
NOTES:
.  Use only the power adapter supplied with this product or equivalent. To order a replacement 
power adapter, visit our website at
 
www.telephones.att.com
 
or call
  
1 (800) 222-3111
In Canada, dial
 
1 (866) 288-4268
.
.  This power adapter is intended to be correctly oriented in a vertical or floor mount position. 
The prongs are not designed to hold the plug in place if it is plugged into a ceiling, under-
the-table or cabinet outlet.
Telephone line cord
DSL filter 
(available from your DSL Internet 
provider)
4. Plug the other 
end of the 
telephone line 
cord into a 
telephone jack.
5. Plug the 
large end of 
the power 
adapter into an 
electrical outlet 
not connected 
to a wall switch.
3. Route cords 
through slots.
2. Plug one end of 
the telephone 
line cord into the 
telephone jack 
on the underside 
of the telephone 
base.
1. Plug the small 
end of the power 
adapter into the 
power jack on 
the underside of 
the telephone 
base.
Plug the power 
adapter into an 
electrical outlet not 
connected to a wall 
switch.
Charger installation
Telephone base installation