Using Your Phone With A Hearing Aid Device - LG LS991 User Manual

Restricting Children's Access to Your Phone
Your phone is not a toy. Do not allow children to play with it as they could hurt themselves and others,
damage the phone or make calls that increase your Sprint invoice.

Using Your Phone With a Hearing Aid Device

Your LGLS991 has an M3/T3 rating.
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 to 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 generate less interference to
hearing devices than phones that are not labeled. T4 is the better/higher of the two ratings.
Hearing devices may also be rated. Your hearing device manufacturer or hearing health professional may
help you find this rating. Higher ratings mean that the hearing device is relatively immune to interference
noise. The hearing aid and wireless phone rating values are then added together. A sum of 5 is
considered acceptable for normal use. A sum of 6 is considered for best use. In the above example, if a
hearing aid meets the M2 level rating and the wireless phone meets the M3 level rating, the sum of the
two values equal M5. This should provide the hearing aid user with "normal usage‖ while using their
hearing aid with the particular wireless phone. ―Normal usage‖ in this context is defined as a signal quality
that's acceptable for normal operation. The M mark is intended to be synonymous with the U mark. The T
mark is intended to be marks are recommended by the Alliance for Telecommunications Industries
Solutions (ATIS). The U and UT marks are referenced in Section 20.19 of the FCC Rules. The HAC rating
and measurement procedure are described in the American National Standards Institute (ANSI) C63.19
standard. To ensure that the Hearing Aid Compatibility rating for your phone is maintained, secondary
transmitters such as Bluetooth and WLAN components must be disabled during a call. For information
about hearing aids and digital wireless phones, visit:
Wireless Phones and Hearing Aid Accessibility
http://www.accesswireless.org/
Gallaudet University, RERC
http://tap.gallaudet.edu/Voice/
FCC Hearing Aid Compatibility and Volume Control
http://www.fcc.gov/cgb/dro/hearing.html
The Hearing Aid Compatibility FCC Order
http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-168A1.pdf
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