LG LGD850 - Manual (Page 109)

109
For Your Safety
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 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’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 phone is
maintained, secondary transmitters such as
Bluetooth and WLAN components must be
disabled during a call.
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