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6
Key Telephone
Precaution
If occur some problems in the course of using, please pull extension
line out and connect with a good working state phone set. If the phone
works properly, it indicated the key phone is failure; if the phone set
works improperly, please check the PBX system and cables of
extensions and contact your dealer or direct contact with maintenance
service center.
Please keep this unit away from heating appliances and electrical
noise generating devices such as air conditioners and televisions, etc.
This unit should be kept free of dust, moisture and vibration, and
should not be exposed to direct sunlight.
Don’t use any other kind microphone.
Never disassemble this unit by Non-professionals, only qualified
maintenance technicians for disassembly and repair.
When a failure occurs which results in the internal parts becoming
accessible, disconnect the telephone line immediately and send this
unit to maintenance service center.
Warning
To prevent fire or shock hazard, keep this unit away from gas pipe
device and do not expose this unit to rain or any type of moisture.
Important Notice
In power failure mode, this unit would not be operated.
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