Nextel comm IR1200 - Manual (Page 64)

iR1200 Modem
56 nextel.com
Hearing Aids
The modem may cause interference with hearing aid devices. Individuals
who experience such interference should consult the hearing aid
manufacturer to discuss alternative solutions.
Other Medical Devices
Individuals who have other medical devices not specifically mentioned in
this safety notice may want to consult their physician or the manufacturer
of the device to determine if it is adequately protected from external RF
energy.
Interference with Other Electronic Devices
RF energy may affect improperly installed or inadequately protected electronic
operating and entertainment systems in motor vehicles. Check with the
manufacturer or representative to determine if these systems are adequately
shielded from external RF energy. It is recommended that you also check with
the manufacturer of any equipment that has been added to the vehicle.