53Useful InformationWARNING:TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THISPRODUCT TO LIQUID OR ANY TYPE OF MOISTURE.When a failure occurs which results in the internal parts becomingaccessible, disconnect AC adaptor immediately and return this unit to theplace of purchase or service centre.If there is any trouble, disconnect the unit from the telephone line andconnect a known working phone. If the known working phone operatesproperly, do not reconnect the unit to the telephone line until the fault hasbeen repaired. If the known working phone does not operate properly,consult your telephone company.This equipment has been tested and found to comply with AS/NZS 3548:1995 limits for electromagnetic interference. Any modifications to any partof the system or to any peripherals may void the EMC compliance of thesystem or the peripherals.This equipment will be inoperable if mains power fails.The earcap on the handset is magnetised and may retain metallicobjects.Operating near 2.4GHz electrical appliances may cause interference.Move away from the electrical appliances and/or press the CH (Channel)button.MedicalConsult the manufacturer of any personal medical devices, such aspacemakers, to determine if they are adequately shielded from externalRF (radio frequency) energy. (The unit operates in the frequency range of2401MHz to 2462MHz, and the power output level can range from 0.001watts to 0.10 watts.) Do not use the unit in health care facilities if anyregulations posted in the area instruct you not to do so. Hospitals orhealth care facilities may be using equipment that could be sensitive toexternal RF (radio frequency) energy.