User's Manual

phones and helped develop a voluntary standard sponsored by the
Institute of Electrical and Electronic Engineers (IEEE). This standard
specifies test methods and performance requirements for hearing aids
and wireless phones so that no interference occurs when a person uses
a “compatible” phone and a “compatible” hearing aid at the same time.
This standard was approved by the IEEE in 2000.
FDA continues to monitor the use of wireless phones for possible
interactions with other medical devices. Should harmful interference be
found to occur, FDA will conduct testing to assess the interference and
work to resolve the problem.
For more information, please visit the FDA website at
http://www.fda.gov (under “c” in the subject index, select Cell Phones
> Research).
Emergency Calls
Never rely solely upon your wireless phone for essential
communications (e.g., medical emergencies), if it can be avoided, since
a wireless phone requires a complex combination of radio signals, relay
stations and landline networks for its operation. Consequently,
emergency calls may not always be possible under all conditions on all
wireless phone systems. Your wireless phone, however, may
sometimes be the only available means of communication at the scene
of an accident. When making an emergency call, always give the
recipient all necessary information as accurately as possible. Never
terminate an emergency call until you have received clearance to do so.
■ FCC Enhanced 911 (E911) Rules
Background
The Federal Communications Commission (FCC) requires wireless
carriers to transmit specific latitude and longitude location (Automatic
Location Identification = ALI) information as well as “911” calls to