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For Your Safety
112
For Your Safety
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- R at i n g s :
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.)
Hearing devices may also be
measured for immunity to this
type of interference. Your
hearing device manufacturer
or hearing health professional
may help you find results for
your hearing device. The
more immune your hearing
aid is, the less likely you are
to experience interference
noise from mobile phones.
To ensure that the Hearing
Aid Compatibility rating for
your phone is maintained,
secondary transmitters such
as Bluetooth
®
and WLAN
components must be disabled
during a call.
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