Samsung SPH-D710AAABST - Manual (Page 165)

4A. Important Safety Information 151
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Using Your Phone With a Hearing
Aid Device
A number of our phones have been tested for hearing aid
device compatibility. When some wireless phones are used
with certain hearing devices (including hearing aids and
cochlear implants), users may detect a noise which can
interfere with the effectiveness of the hearing device.
Some hearing devices are more immune than others to this
interference noise, and phones also vary in the amount of
interference noise they may generate. ANSI standard C63.19
was developed to provide a standardized means of measuring
both wireless phone and hearing devices to determine usability
rating categories for both.
Ratings have been developed for mobile phones to assist
hearing device users find phones that may be compatible with
their hearing device. Not all phones have been rated for
compatibility with hearing devices. Phones that have been
rated have a label located on the box.
Your Samsung Galaxy S
II has an M4 T4 - 2007 rating .
These ratings are not guarantees. Results will vary depending
on the user’s hearing device and individual type and degree of
hearing loss. If a hearing device is particularly vulnerable to
interference noise; even a phone with a higher rating may still
cause unacceptable noise levels in the hearing device. Trying
out the phone with your hearing device is the best way to
evaluate it for your personal needs.
M-Ratings : Phones rated M3 or M4 meet FCC requirements for
hearing aid compatibility and are likely to generate less
interference to hearing devices than unrated 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: New Technologies, Including Wi-Fi 
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 pro-
vider or phone retailer.