Quick Reference Guide
Model
KX-T7720E/KX-T7730E/KX-T7750E
Important Information
Proprietary Telephones
When using the KX-T7700 series, keep the following in mind.
If there is any problem, unplug the extension and connect a known working phone. If the
known working phone operates properly, have the defective phone repaired by your
maintainer. If the known working phone does not operate properly, check the PABX
System and the internal extension wiring.
Keep the unit away from heating appliances and electrical noise generating devices such
as fluorescent lamps and motors.
The unit should be kept free of dust, moisture and vibration, and should not be exposed to
direct sunlight.
Do not use benzine, thinner, or any abrasive powder to clean the cabinet. Wipe it with a
soft cloth.
Do not disassemble this unit. Dangerous electrical shock could result. The unit must only
be disassembled and repaired by qualified service technicians.
When a failure occurs which exposes any internal parts, disconnect the telephone line
and mains supply immediately and return the unit to your maintainer.
This unit is designed to be installed under controlled conditions of ambient temperature
and a relative humidity.
Avoid installing the unit in damp or humid environments, such as bathrooms or swimming
pools.
999 or 112 can be dialled on the product after accessing the CO line for the purpose of
making outgoing calls to the BT emergency (999) and (112) services.
WARNING:
TO PREVENT THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS
PRODUCT TO RAIN OR ANY TYPE OF MOISTURE.
THIS HANDSET EARPIECE IS MAGNETISED AND MAY RETAIN SMALL FERROUS
OBJECTS.
IMPORTANT NOTICE:
Under power failure conditions, this telephone may not operate. Please ensure that a
separate telephone, not dependent on local power, is available for use in an emergency.
Notes:
In this manual, the suffix of each model number is omitted.
For further information, refer to the Main Unit/PABX Manuals.
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