In the above example, if a hearing aid meets the M2 level rating and the wireless
device meets the M3 level rating, the sum of the two values equal M5. This should
provide the hearing aid user with “normal usage” while using their hearing aid with
the particular wireless device. “Normal usage” in this context is defined as a signal
quality that’s 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.
To ensure that the Hearing Aid Compatibility rating for your device is maintained,
secondary transmitters such as Bluetooth® and WLAN components must be
disabled during a call.
For information about hearing aids and digital wireless devices:
Wireless Devices and Hearing Aid Accessibility
http://www.accesswireless.org/
Gallaudet University, RERC
http://tap.gallaudet.edu/Voice/
FCC Hearing Aid Compatibility and Volume Control
https://www.fcc.gov/general/hearing-aid-compatibility-and-volume-control
The Hearing Aid Compatibility FCC Order
http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-168A1.pdf
HAC Statement
This device 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 device that have not been tested yet for use with hearing
aids. It is important to try the different features of this device 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 device for information on hearing aid compatibility. If you have questions about
return or exchange policies, consult your service provider or device retailer.
This mobile phone has a Hearing Aid Mode that, when activated, may reduce
interference with some hearing aid models.
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