Nortel Networks 4027 Telephone User Manual


 
Getting started
24
Charge display
The battery charge status appears on the display screen. When the
battery is nearly discharged, the battery symbol flashes and a warning
tone sounds. If you are on a call, approximately 3 to 5 minutes of talk time
exists before the handset switches off. If you are not on a call and the
handset is not in the charging station, the message “Battery empty”
appears on the display. You cannot make calls while this message
appears.
CAUTION
Do not install the charger, handset, and accessories
near the following:
water, moisture, sources of heat, or direct sunlight
devices that generate strong magnetic fields,
electrical appliances, fluorescent lamps, computers,
radios, televisions, and fax or telephone terminals
areas where the handset can be covered or in
excessive dust, and areas subject to vibration,
shock, or extreme temperature fluctuations
locations with poor ventilation
CAUTION
Use only the plug-in AC adapter and battery type
supplied, and use only approved accessories.
Ensure the mains voltage of the adapter matches the
local mains voltage.
Do not use AC adapters that are visibly damaged
(cracked or broken) and keep the ventilation slits on the
AC adapters free from obstruction.
Attention: The handset, if switched off, automatically switches on
when placed in the charger.