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Appendix
Troubleshooting
Ifyouhavedicultywithyourtelephone,pleasetrythefollowingsuggestions.
For customer service, or to purchase accessories or replacement parts, visit our 
website at https://telephones.att.com, or call 1 (800) 222-3111. In 
Canada, dial 1 (866) 288-4268. 
I cannot pair my cell phone to the telephone base.
 f Make sure you have cellular coverage.
 f Make sure your cell phone is compatible with your DL72130/DL72210/DL72240/
DL72250/DL72310/DL72340/DL72350/DL72510/DL72570/DL72580. Check the 
Bluetooth compatibility list at https://telephones.att.com/bluetooth.
 f Make sure the Bluetooth function of your cell phone is turned on. See the 
user’s manual of your cell phone for more information.
 f Make sure that you set your cell phone to search for devices.
 f If the DL72130/DL72210/DL72240/DL72250/DL72310/DL72340/DL72350/
DL72510/DL72570/DL72580 is in your cell phone device history list, delete it 
and try pairing again.
 f Carefully follow the pairing instructions on page 19. Make sure that your 
cell phone is not connected to any other Bluetooth device.
 f Turnoyourcellphone,thenturnitonagain.
 f Reset the telephone base. Unplug the unit’s electrical power. Wait for 
approximately 15 seconds, then plug it back in. Repeat the suggestions 
mentioned above.
I cannot pair my headset to the telephone base.
 f Make sure that your Bluetooth headset is in discoverable mode when pairing 
with the telephone base. See the user’s manual of your headset for more 
information on how to set your headset to discoverable mode.
 f Make sure your headset is compatible with your DL72130/DL72210/
DL72240/DL72250/DL72310/DL72340/DL72350/DL72510/DL72570/
DL72580. Check the Bluetooth compatibility list at  
https://telephones.att.com/bluetooth.
 f Carefully follow the pairing instructions on page 21. Make sure that your 
headset is not connected to any other Bluetooth device.
 f Reset the telephone base. Unplug the unit’s electrical power. Wait for 
approximately 15 seconds, then plug it back in. Repeat the suggestions 
mentioned above.