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• The ANSI standard for hearing aid compatibility
contains two types of ratings.
• M-Ratings: Rating for less radio frequency
interference to enable acoustic coupling with
hearing aids.
• T-Ratings: Rating for inductive coupling with
hearing aids in tele-coil mode.
• Not all phones have been rated, a phone is
considered hearing aid compatible under FCC
rules if it is rated M3 or M4 for acoustic coupling
and T3 or T4 for inductive coupling. These ratings
are given on a scale from one to four, where four
is the most compatible. Your phone meets the
M3/T3 level rating.
• However, hearing aid compatibility ratings don t
guarantee that interference to your hearing aids
won't happen. Results will vary, depending on the
level of immunity of your hearing device and the
degree of your 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.
• 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
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