Zte Arthur User Manual page 20

generate. The wireless telephone industry has developed ratings for some of
their mobile phones to assist hearing device users in finding phones that may
be compatible with their hearing devices. Not all phones have been rated.
Phones that have been rated have a label on the box. Your Arthur has been
tested for hearing aid device compatibility and has an M 4 and/or T 3 rating.
These ratings are not guaranteed. 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.
M-Ratings: Phones rated M3 or M4 meet FCC requirements and are likely to
generate less interference with 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
be more usable with a hearing device‟s telecoil ("T Switch" or "Telephone
Switch") than unrated phones. T4 is the better/higher of the two ratings. (Note
that not all hearing devices contain telecoils.) The more immune your hearing
aid device is, the less likely you are to experience interference noise from
your wireless phone.
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