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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 better use. A sum of 8 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 is acceptable for
normal operation.
This methodology applies equally forT ratings.
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 forTelecommunications Industries
Solutions (ATIS). The U and UT marks are referenced
in Section 20. 1 9 of the FCC Rules. The HAC rating
and measurement procedure are described in the
American National Standards Institute (ANSI) C63. 1 9
standard.
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 provider or the
manufacturer of this phone for information on hearing
Important Safety Information
Important Safety Information
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