AT&T Marathon User Manual page 45

Cordless headset
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Appendix
Troubleshooting
My cordless headset isn't performing normally.
Make sure the power cord is securely plugged into the headset
base. Plug the unit into a different working electrical outlet not
controlled by a wall switch.
Move the cordless headset closer to the headset base. You
might have moved out of range.
Reset the headset base. Unplug the unit's electrical power.
Wait for 15 seconds, then plug it back in. Allow up to one
minute for the cordless headset and headset base to reset.
Other electronic products such as HAM radios and other DECT
phones, can cause interference with your cordless headset.
Try installing your headset as far away as possible from these
types of electronic devices.
The batteries do not hold a charge.
Make sure that the headset battery is installed and securely
plugged into the connector.
If the cordless headset is in the headset base and the
ON/OFF light on the headset does not turn on, refer to
The ON/OFF light on the headset is off while charging on
page 43 of this Troubleshooting guide.
Charge the battery in the cordless headset for at least 6 hours.
For optimum daily performance, return the cordless headset to
the headset base when not in use.
You may need a new battery. Refer to Battery charging on
page 10.
Your headset might be defective. Refer to Limited warranty on
pages 62-65 for further instructions.
39

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