User Manual

Getting started
4
IMPORTANT INFORMATION
Use only the supplied rechargeable battery or replacement batteryUse only the supplied rechargeable battery or replacement battery
(model BT185742/BT285742). To order, visit our website at
www.telephones.att.com or call 1 (800) 222-3111.
In Canada, dial 1 (866) 288-4268.
If you do not use the speakerphone for a long time, disconnect andIf you do not use the speakerphone for a long time, disconnect and
remove the battery to prevent possible leakage.
Battery installation and charging
Once you have installed the battery, the CHARGE light on the
speakerphone indicates the battery status (see the following
table). If necessary, place the speakerphone in the charger
to charge the battery. For optimal performance, keep the
speakerphone in the charger when not in use. The battery is fully
charged after 11 hours of continuous charging. See Technical
specifications on page 51 for battery operating times.
NOTES:
If you are on a call in low battery mode, you hear a low battery alert tone
every 60 seconds.
If the battery is not properly installed or no battery is installed in the
speakerphone, the CHARGE light is off when you place it in the charger.
Follow the instructions on page 3 to install the battery.
CHARGE light Battery status
Red: Flashes every 10 seconds. Battery has very little charge and needs
charging when the speakerphone is out
of the charger.
Red: Steadily on. Battery is charging.
Green: Steadily on. Battery is fully charged when the
speakerphone is in the charger.