– Locations where air ventilation is poor.– Locations that may be exposed to sulphurous gas, such as near hot springs.– Near devices that emit heat, such as heaters.– Near devices that emit electromagnetic noise, such as radios or televisions.– Near devices that emit high-frequency noise, such as sewing machines or welders.• Do not stretch or bend the cables. Also, do not allow anything to rest on the cables.• Use cables that are fire-resistant or fireproof.• The CS and the cables should never be placed near or over a radiator or other heat source.• Do not bundle cables that are connected to the CS with the AC power cords of machines locatednearby.• Make sure the cables are securely fastened to the wall.• Disconnect the telephone cord from the unit before cleaning. Clean the unit with a soft, dry cloth. Donot use liquid, aerosol cleaners, abrasive powders, or chemical agents to clean the unit.• When left unused for a long period of time, disconnect the unit from the telephone cord.• Medical—consult the manufacturer of any personal medical devices, such as pacemakers, todetermine if they are adequately shielded from external RF (radio frequency) energy. (The unit operatesin the frequency range of 1880 MHz to 1900 MHz, and the output peak power level is less than0.25 W.) Do not use the unit in health care facilities if any regulations posted in the area instruct younot to do so. Hospitals or health care facilities may be using equipment that could be sensitive toexternal RF (radio frequency) energy.NoticeSAFETY REQUIREMENTS• Before connecting the unit, confirm that the unit supports the intended operating environment.• If the unit does not operate properly, disconnect the telephone cord, then connect again.• The unit may not operate in the event of a power failure.• Do not move the unit while it is in use.• Satisfactory operation, interoperability, and compatibility cannot be guaranteed with all equipmentconnected to the unit, nor with all services provided by telecommunications providers over networksconnected to the unit.SECURITY REQUIREMENTS• Privacy of communications may not be ensured when using the wireless systems.NoteIn this manual, the suffix of each model number (e.g., KX-TDA0158CE) is omitted unless necessary.Quick Installation Guide 3Important Information