If you have difficulty with your telephone, please try the suggestions below. 
For Customer Service, visit our website at www.telephones.att.com or 
call 1 (888) 915-2007. In Canada, dial 1 (866) 288-4268.
My telephone 
base doesn’t 
work at all.
Make sure the power cord is securely plugged in.
Make sure you plug the telephone line cord securely 
and firmly into the telephone base and the telephone 
wall jack.
Reset the telephone base. Unplug the electrical power. 
Wait for approximately 15 seconds, then plug it back 
in. Allow up to one minute for the telephone base  
to reset.
You may need to purchase four AA alkaline batteries 
as backup battery to make the telephone base work in 
the event of a power failure. Please refer to Optional 
backup battery installation on page 9 in this  
user’s manual.
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I cannot get a 
dial tone from the 
corded handset.
First try all the suggestions above.
Make sure you plug the handset cord securely and 
firmly into the HANDSET jack on the telephone base 
and the corded handset. 
If the previous suggestions do not work, disconnect 
the telephone base from the telephone jack and 
connect to a different telephone. If there is no dial 
tone on that telephone either, the problem is in your 
wiring or local service. Contact your telephone  
service provider.
Your line cord might be malfunctioning. Try installing a 
new line cord.
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I cannot dial out.
First try all the suggestions above.
Make sure you have a dial tone before dialing. The 
corded handset might take a second or two to connect 
the telephone base and produce a dial tone. This is 
normal. Wait an extra second before dialing.
Eliminate any background noise. Noise from a 
television, radio or other appliances might cause 
the telephone to not dial out properly. If you cannot 
eliminate the background noise, first try muting the 
corded handset before dialing, or dialing from another 
room by a cordless handset with less background noise.
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Appendix
Troubleshooting
90