AT&T 1740 User Manual

Page of 12
Installation
Parts list
1740 answering system
Wallet card
Part 1 Important product information
Part 2 User’s manual
Power adapter
Before you install
Choose a location for the answering system near a telephone jack and a standard 
electrical outlet not controlled by a wall switch.




Use only the power adapter supplied  
with this product. To obtain a 
replacement, visit our website at  
       
 
www.telephones.att.com
 or call  
        
1 (800) 222-3111
. In Canada, dial  
       
 1 (866) 288-4268.
                                                              
 1
NOTES:
Power adapter - Input: 117V AC, 60 Hz / Output: 6V AC, 350 mA.
If the message window is off, make sure the power adapter is securely connected to both the 
answering system and an electrical outlet not controlled by a wall switch.
If you subscribe to high-speed Internet service (DSL - digital subscriber line) through your telephone 
line, you must install a DSL filter between the telephone line cord and the telephone wall jack. The 
filter prevents noise and caller ID problems caused by DSL interference. Please contact your DSL 
service provider for more information about DSL filters.

Press 
ON/OFF to turn the system on or off. If the system is on, the  
 
ON/OFF indicator light is on. If the system is off, the indicator light is off and 
the message window is blank. When the system is off and you press any key 
(except 
ON/OFF), it announces, “The machine is off. Press  ON/
OFF
 to turn on.”
After you install the answering system for the first time, the system turns on 
automatically and announces, “To set the clock, press 
CLOCK.” See Set the 
clock on page 2 for instructions.  
To record your own announcement (optional), see 
Record your announcement 
on pages 2-3 for instructions. 
To program other system features (optional), see pages 3-4 for details.
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Connect the power adapter.
Standard electrical outlet not 
controlled by a wall switch.
Strain-relief tab for protecting 
the power cord.
Connect the 
telephone line cord.
Telephone jack
Telephone line cord  
(not included)
Connect a 
telephone   
(optional).
If you have DSL high-speed 
Internet service, a DSL filter 
(not included) is required.
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