Troubleshooting
If you have difficulty with your phone, please try the following 
suggestions. For Customer Service, visit our website at  
www.telephones.att.com or call 1 (800) 222-3111.  
In Canada, dial 1 (866) 288-4268.
The handset registration is unsuccessful.  
Follow the handset registration instructions to register the handset 
again (see Adding and registering handsets on pages 8-9). 
My telephone doesn’t work at all.
Make sure the power cord is securely plugged in.
Make sure you plug the battery connector securely into the 
cordless handset.
Make sure you plug the telephone line cord securely and firmly 
into the telephone base and the telephone wall jack.
Charge the battery in the cordless handset for at least 10 hours. 
For optimum daily performance, return the cordless handset to 
the telephone base or charger when not in use.
If the battery is depleted, it might take approximately 30 minutes 
to charge the handset before it shows Low battery. See page 6 
for details. 
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 cordless handset and telephone base to reset.
You may need to purchase a new battery. Refer to Battery 
installation and charging in this user’s manual on pages 6-7.
The display shows No line. I cannot get a dial tone. 
Try all the suggestions mentioned above.
If the previous suggestions do not work, disconnect the 
telephone line cord from your telephone and connect the 
telephone line cord to another telephone.
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Appendix
11