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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’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 enter that the Hearing Aid
Compatibility rating for your phone
is maintained, secondary
transmitters such as Bluetooth and
WLAN(this phone does not have
WLAN) components must be
disabled during a call. See Page 91
for instructions to disable these
components.
For information about hearing aids
and digital wireless phones
FCC Hearing Aid Compatibility and
Volume Control
http://www.fcc.gov/cgb/dro/hearing.html
Gallaudet University, RERC
http://tap.gallaudet.edu/DigWireless.KS/
DigWireless.htm
HLAA (Hearing Loss Association of
America)
http://www.hearingloss.org/learn/cellph
onetech.asp
The Hearing Aid Compatibility FCC
Order
http://hraunfoss.fcc.gov/edocs_public/at
tachmatch/FCC-03-168A1.pdf