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102
Appendix
FCC Hearing-Aid Compatibility
Regulations for Wireless Devices
Regulations for Wireless Devices
On July 10, 2003, the U.S. Federal Communications Commission
(FCC) Report and Order in WT Docket 01-309 modified
the exception of wireless phones under the Hearing Aid
Compatibility Act of 1988 (HAC Act) to require digital wireless
phones be compatible with hearing-aids. The intent of the HAC
Act is to ensure reasonable access to telecommunications
services for persons with hearing disabilities.
(FCC) Report and Order in WT Docket 01-309 modified
the exception of wireless phones under the Hearing Aid
Compatibility Act of 1988 (HAC Act) to require digital wireless
phones be compatible with hearing-aids. The intent of the HAC
Act is to ensure reasonable access to telecommunications
services for persons with hearing disabilities.
While some wireless phones are used near some hearing
devices (hearing aids and cochlear implants), 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.
devices (hearing aids and cochlear implants), 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.
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 boxes or a label located on the boxes.
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 boxes or a label located on the boxes.
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 hearing device is the best way to evaluate it for your
personal needs.
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 hearing device is the best way to evaluate it for your
personal needs.
x
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.
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.
x
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.
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.
THIS PHONE HAS A HAC RATING OF M3/T4.
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.
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 equals 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.
and the wireless phone meets the M3 level rating, the sum of
the two values equals 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.
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.
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 90 for instructions to disable these
components.
your phone is maintained, secondary transmitters such
as Bluetooth and WLAN components must be disabled
during a call. See page 90 for instructions to disable these
components.