Nokia X100 Guide De L'utilisateur page 52

Nokia X100 Guide de l'utilisateur
compatibility standards. The ANSI standard for hearing aid compatibility contains two types
of ratings: M-Ratings: Rating for less radio frequency interference to enable acoustic coupling
with hearing aids. T-Ratings: Rating for inductive coupling with hearing aids in telecoil mode.
Not all phones have been rated, a phone is considered hearing aid compatible under FCC
rules if it is rated M3 or M4 for acoustic coupling and T3 or T4 for inductive coupling. These
ratings are given on a scale from one to four, where four is the most compatible. Your phone
meets the M3/T3 level rating. However, hearing aid compatibility ratings don't guarantee
that interference to your hearing aids won't happen. Results will vary, depending on the
level of immunity of your hearing device and the degree of your 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. Hearing devices may also be rated. Your hearing
device manufacturer or hearing health professional may help you find this rating. For more
information about FCC Hearing Aid Compatibility, please go to http://www.fcc.gov/cgb/dro.
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