HTC 2PS6400 Safety Manual page 9

Safety and regulatory guide 9
implants). This hearing-aid compatibility (HAC) rating system is
described in the American National Standards Institute (ANSI)
C63.19 standard and includes the following ratings:
M-Ratings: For phones that use acoustic coupling with hearing
devices that are not operating in telecoil mode. Phones rated M3
or M4 meet FCC HAC requirements and are likely to generate less
radio frequency interference with hearing devices than phones
with lower ratings. M4 is the better/higher of the two ratings. Your
2PS6400 is rated M4.
T-Ratings: For phones that use inductive coupling with hearing
devices operating in telecoil mode. Phones rated T3 or T4 meet
FCC HAC requirements and are likely to be more usable with a
hearing aid's telecoil than phones that are not rated. T4 is the
better/higher of the two ratings. Your 2PS6400 is rated T4.
This phone has been tested and rated for use with hearing aids for
some of the wireless technologies that it uses. However, there may
be some newer wireless technologies used in this phone that have
not been tested yet for use with hearing aids. It is important to try
the different features of this phone thoroughly and in different
locations, using your hearing aid or cochlear implant, to determine
if you hear any interfering noise. Consult your service provider or
the manufacturer of this phone for information on hearing aid
compatibility. If you have questions about return or exchange
policies, consult your service provider or phone retailer.
The ratings are not guarantees. Trying out the phone with your
hearing device is the best way to evaluate it for your personal
needs. Results will vary depending on a user's hearing device and
hearing loss. For example, if some wireless phones are used near
some hearing devices, users may detect a buzzing, humming, or
whining noise. Some hearing devices are more immune than others
to this interference noise, and phones also vary in the amount of
interference they generate. If your hearing device happens to be
vulnerable to interference, you may not be able to use a rated
phone successfully.
Please power off the Bluetooth function while using hearing aid
devices with your 2PS6400.