Using Your Phone With A Hearing Aid Device - Sanyo Katana II User Manual

Using Your Phone With a Hearing Aid Device

Your phone has 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 located on the
Your KATANA II by SANYO has an M4 rating
box.
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
and are likely to generate less interference to hearing devices than unrated phones. (M4 is
the better/higher of the two ratings.)
T-Ratings
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 healthcare professional
for the rating of your hearing aid. Add the rating of your hearing aid and your phone to
determine probable usability:
Any combined rating equal to or greater than six offers excellent use.
Any combined rating equal to five is considered normal use.
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.
178 Section 4A: Important Safety Information
: Phones rated M3 or M4 meet FCC requirements for hearing aid compatibility
: Phones rated T3 or T4 meet FCC requirements and are likely to be more usable
.