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doubleplay | User Guide
The wireless telephone industry has developed
a rating system for wireless phones, to assist
hearing device users to find phones that may
be compatible with their hearing devices. Not all
phones have been rated. Phones that are rated
have the rating on their box or a label located on
the box.
The ratings are not guarantees.
Results will vary depending on the user’s hearing
device and 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.
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.