Always secure the phone in its holder, do not place the phone on the passenger seat or where it can break loose in a collision or sudden stop. The use of the a vehicle's light or horn as a alert device on public roads is not permitted. Operating Environment Remember to follow any special regulations in force in any area and always switch off your phone whenever it is forbidden to use it, or when it may cause interference or danger. Turn off your phone and do not remove the battery when in a potentially explosive atmosphere. Sparks from your battery in such areas could cause an explosion.
Airline regulations prohibit using wireless phones while in the air.
All electronic equipment around the place of use of the wireless phone should be properly shielded against RF signals, else they could malfunction. Electronic fuel injection systems, electronic anti skid braking systems, electronic cruise control systems and other electronic systems can malfunction if they do not have proper shielding against RF signals. Pacemakers Operation of any radio transmitting equipment, including wireless telephones, may interfere with the functionality of inadequately protected medical devices. These recommendations are consistent with the independent research by and recommendations of Wireless Technology Research. Some digital phones may interfere with some hearing aids.