T-Mobile Concord II User Manual page 142

their hearing devices. Not all phones have been rated. Phones that are rated have
the rating on their box or a label located on the box. The ratings are not guarantees.
Results will vary depending on the user's hearing device and 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.
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 some newer wireless
technologies used in this phone that have not been tested yet for use with hearing
aids. It is important to try the different features of this phone thoroughly and in
different locations, using your hearing aid or cochlear implant, to determine if you
hear any interfering noise. Consult your service provider or the manufacturer of this
phone for information on hearing aid compatibility. If you have questions about return
or exchange policies, consult your service provider or phone retailer.
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.)
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