User manual

6
phones. (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.)
Note: This phone has been tested and rated for use with
hearing aids for some of the wireless technologies that it
uses. However, there may be newer wireless technologies
(including Wi-Fi) used in this phone that have not been
tested for use with hearing aids.
Hearing aid devices may also be measured for immunity to
interference noise from wireless phones and should have
ratings similar to phones. Ask your hearing healthcare
professional for the rating of your hearing aid. Add the
rating of your hearing aid and your phone to determine
probable usability:
•
Any combined rating equal to or greater than six offers
excellent use.
•
Any combined rating equal to five is considered
normal use.
•
Any combined rating equal to four is considered usable.
Thus, if you pair an M3 hearing aid with an M3 phone, you
will have a combined rating of six for “excellent use.” This
is synonymous for T ratings.
It is further suggested you experiment with multiple phones
(even those not labeled M3/T3 or M4/T4) while in the store
to find the one that works best with your hearing aid device.
Should you experience interference or find the quality of
service unsatisfactory after purchasing your phone,
promptly return it to the store.
More information about hearing aid compatibility may be
found at: fcc.gov, fda.gov, and accesswireless.org.