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Important Safety Information
S1. Important Safety Information 147
Using Your Phone With a Hearing
Aid Device
A number of Nextel phones have been tested for hearing aid
device compatibility. When some wireless phones are used
with certain hearing devices (including hearing aids and
cochlear implants), users may detect a noise which can
interfere with the effectiveness of the hearing device.
Some hearing devices are more immune than others to this
interference noise, and phones also vary in the amount of
interference noise they may generate. ANSI standard C63.19
was developed to provide a standardized means of measuring
both wireless phone and hearing devices to determine usability
rating categories for both.
Ratings have been developed for mobile phones to assist
hearing device users find phones that may be compatible with
their hearing device. Not all phones have been rated for
compatibility with hearing devices. Phones that have been
rated have a label with the rating(s) located on the box, and are
listed at www.motorola.com/accessibility
.
These ratings are not guarantees. Results will vary depending
on the user’s hearing device and individual type and degree of
hearing loss. If a hearing device is particularly vulnerable to
interference noise; even a phone with a higher rating may still
cause unacceptable noise levels in the hearing device. Trying
out the phone with your hearing device is the best way to
evaluate it for your personal needs.
M-Ratings: Phones rated M3 or M4 meet FCC requirements for
hearing aid compatibility and are likely to generate less
interference to hearing devices than unrated phones. (M4 is the
better/higher of the two ratings.)
T-Ratings: Phones rated T3 or T4 meet FCC requirements and
are likely to be more usable with a hearing device’s telecoil (“T
Switch”or “Telephone Switch”) than unrated phones. (T4 is the
better/higher of the two ratings. Note that not all hearing
devices have telecoils in them.)
Hearing aid devices may also be measured for immunity to
interference noise from wireless phones and should have
ratings similar to phones. Ask your hearing health care
professional for the rating of your hearing aid. Add the rating of
your hearing aid and your phone to determine probable
usability:
ⅷ Any combined rating equal to or greater than six offers
excellent use.
ⅷ Any combined rating equal to five is considered normal use.
ⅷ Any combined rating equal to four is considered usable.
Thus, if you pair an M3 hearing aid with an M3 phone, you will
have a combined rating of six for “excellent use.”This is
synonymous for T ratings.
Nextel further suggests you experiment with multiple phones
(even those not labeled M3/T3 or M4/T4) while in the store to
find the one that works best with your hearing aid device.
Should you experience interference or find the quality of
service unsatisfactory after purchasing your phone, promptly
return it to the store within 30 days of purchase. With the Sprint
30-day Risk-Free Guarantee, you may return the phone within
30 days of purchase for a full refund. More information about
hearing aid compatibility may be found at:
www.motorola.com/accessibility,
www.fcc.gov, www.fda.gov,
and www.accesswireless.org
.