AT&T TL7700 user manual Replace a headset, You may need to deregister your headsets if

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Getting started

Replace a headset

You may need to deregister your headsets if:

•You have already registered the headset and now wish to register your headset to a different AT&T DECT telephone.

-OR-

•You have registered the maximum number of headsets and need to replace one of them. You must first deregister all headsets, and then register each headset you wish to use again, one at a time.

Please read carefully through all the instructions on this page before beginning the deregistration process.

Deregister all headsets from an AT&T DECT cordless telephone base

1.Press and hold /HANDSET LOCATOR on the telephone base for about 10 seconds until the IN USE light starts to flash, then release the button.

2. Immediately press /HANDSET LOCATOR again. You must press /HANDSET LOCATOR while the IN USE light is still flashing. (The light flashes for about five seconds.)

It takes about 10 seconds to complete the deregistration process. The light flashes slowly in red and blue when the deregistration process is successful.

3.To register the headset(s) to the telephone base again, follow the registration instructions on page 9.

NOTES:

•You cannot deregister the headset(s) if any system handset/headset is in use.

•Even if the battery is depleted, you can still deregister the headset by following the steps above.

•The button used for deregistration on your cordless telephone system may be different. Refer to your telephone user's manual for detailed information.

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Contents User’s manual Congratulations Parts checklist Table of contents Quick reference guide headset Headset lightsVOL+/VOL Headset alert tones Quick reference guide headset charger Installation Avoid placing the telephone base too close toBattery installation Battery charging and connecting charger power Add and register headsets Register a headset to an AT&T Dect cordless telephone base You may need to deregister your headsets if Replace a headsetTo remove the earbud from the headset earpiece Headset attachmentsEarbud To attach the earbud to the headset earpieceTo adjust the headset to wear on the left or right ear Over-the-ear hookTo attach the ear hook to the headset To remove the ear hook from the headset Over-the-head band To attach the head band to the headset To remove the head band from the headset Behind-the-neck band To attach the neck band to the headset To remove the neck band from the headset Other party cannot hear my voice during a call TroubleshootingMy headset doesn’t work at all There is no dial toneMy cordless headset isn’t performing normally Battery does not chargeCannot dial out Troubleshooting Troubleshooting Want to use my headset with a different telephone base Hear other calls while using my headsetMy calls cut in and out while I’m using my cordless headset Cannot register the headset Light on the headset is off while chargingCommon cure for electronic equipment Important safety information Important safety information Important safety information Precautions for users of implanted cardiac pacemakers Pacemaker patientsTaking care of your headset MaintenanceCleaning your headset Avoid waterFCC Part 68 and Acta Industry Canada FCC Part Limited warranty What does this limited warranty cover?How long is the limited warranty period? How do you get warranty service? Other limitations Technical specifications Dect 6.0 digital technology