3Com 3107c User Guide - Page 127

Important Safety Instructions 127 Radio Interference Radio interference may occasionally cause buzzing and humming in your 3Com Cordless Telephone handset, or clicking noises in the base unit. This interference is caused by external sources such as a TV, refrigerator, vacuum cleaner, fluorescent lighting, computer equipment, or electrical storm. Your unit is NOT DEFECTIVE. If these noises continue and are too distracting, please check to see what appliances may be causing the problem. In addition, we recommend that the Base not be plugged into a circuit that also powers a major appliance, because of the potential for interference. Also be certain that the antenna on the unit is fully extended when needed. In the unlikely event that you consistently hear other voices or distracting transmissions on your phone, you may be receiving radio signals from another 3Com Cordless Telephone or another source of interference. If you cannot eliminate this type of interference, you need to change to a different channel. Finally, some telephones operate at frequencies that may cause interference to nearby TVs and VCRs. To minimize or prevent such interference, the base of the 3Com Cordless Telephone should not be placed near or on top of a TV or VCR. If interference is experienced, moving the 3Com Cordless Telephone farther away from the TV or VCR often reduces or eliminates the interference. Privacy 3Com Cordless Telephones are radio devices. Communications between the handset and base unit are accomplished by means of radio waves which are broadcasted over the open airways. Because of the inherent physical properties of radio waves, your communications can be received by radio receiving devices other than your own 3Com Cordless Telephone unit. Consequently, any communications using your 3Com Cordless Telephone might not be private.