Pantech Breeze II User Manual page 83

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.
The wireless telephone industry has developed
a rating system for wireless phones, to assist
hearing device users find phones that may be
compatible with their hearing devices. Not all
phones have been rated. Phones that are rated
have the rating on their box or a label located
on the box.
The ratings are not guarantees. Results will
vary depending on the user' s hearing device
and hearing loss. If your hearing device
happens to be vulnerable to interference,
you may not be able to use a rated phone
successfully. Trying out the phone with your
164 164
hearing device is the best way to evaluate it for
your personal needs.
• M-Ratings: Phones rated M3 or M4 meet FCC
requirements and are likely to generate less
interference to hearing devices than phones
that are not labeled. M4 is the better/higher
of the two ratings.
• T-Ratings: Phones rated T3 or T4 meet FCC
requirements and are likely to generate less
interference to hearing devices than phones
that are not labeled. T4 is the better/higher
of the two ratings.
Hearing devices may also be rated. Your
hearing device manufacturer or hearing health
professional may help you find this rating.
Higher ratings mean that the hearing device
is relatively immune to interference noise.
The hearing aid and wireless phone rating
values are then added together. A sum of 5 is
considered acceptable for normal use. A sum of
6 is considered for best use.
In the above example, if a hearing aid meets
the M2 level rating and the wireless phone
meets the M3 level rating, the sum of the
two values equal M5. This is synonymous for
T ratings. This should provide the hearing aid
user with " normal usage" while using their
hearing aid with the particular wireless phone.
"Normal usage" in this context is defined as
a signal quality that is acceptable for normal
operation.
Appendix
The M mark is intended to be synonymous
with the U mark. The T mark is intended to
be synonymous with the UT mark. The M and
T marks are recommended by the Alliance
for Telecommunications Industries Solutions
(ATIS). The U and UT marks are referenced in
Section 20.19 of the FCC Rules. The HAC rating
and measurement procedure are described
in the American National Standards Institute
(ANSI) C63.19 standard.
To ensure that the Hearing Aid Compatibility
rating for your phone is maintained, secondary
transmitters such as Bluetooth and WLAN
components must be disabled during a call.
See page 75 for instructions to disable these
components.
01
02
03
04
05
06
01
02
03
04
05
06
07
165 165