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Switch” or “Telephone Switch”) than unrated phones. T4 is the
better/ higher of the two ratings. (Note that not all hearing devices
contain telecoils.)
Your phone has been tested for hearing aid device compatibility
and has an
M4/T4
rating.
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.
For additional information about the FCC’s actions with regard to
hearing aid compatible wireless devices and other steps the FCC
has taken to ensure that individuals with disabilities have access
to telecommunications services, please go to
www.fcc.gov/cgb/dro.