User's Manual

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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 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 have telecoils in them.)
Your phone meets the M4/T3 level rating.
Hearing devices may also be rated. Your hearing device
manufacturer or hearing health professional may help you
find this rating. For more information about FCC Hearing Aid
Compatibility, please go to http://www.fcc.gov/cgb/dro.