Huawei H892L Quick Start Manual page 20

cause interference with hearing aids or cochlear implants,
digital wireless phones sometimes do because of
electromagnetic energy emitted by the phone's antenna,
backlight, or other components.
Your phone is compliant with FCC HAC regulations (ANSI
C63.19).
While some wireless phones are used near some hearing
devices (hearing aids and cochlear implants), users may
detect a buzzing, humming, or whining noise.
Some hearing devices are more immune than others to this
interference noise, and phones also vary in the amount of
interference they generate.
The wireless telephone industry has developed a rating
system for wireless phones, to assist hearing device users find
phones that may be compatible with 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.
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.) Hearing devices may also be
measured.
Your phone meets the M4/T4 level rating. Hearing devices
may also be rated. Your hearing device manufacturer or
hearing health professional may help you find this rating.
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