User's Manual

207
Safety
The M mark is intended to be synonymous with the U mark.
The T mark is intended to be synonymous with the UT mark.
The M and T 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.
For information about hearing aids and digital wireless
phone:
FCC Hearing Aid Compatibility and Volume Control
http://www.fcc.gov/cgb/dro/hearing.html
Gallaudet University, RERC
http://tap.gallaudet.edu/DigWireless.KS/DigWireless.htm
Self Help for Hard of Hearing People Inc. [SHHH]
www.hearingloss.org/hat/TipsWirelessPhones.htm
The Hearing Aid Compatibility FCC Order
http://hraunfoss.fcc.gov/edocs_public/attachmatch/ FCC-03-
168A1.pdf
k Avoid potential hearing loss.
Prolonged exposure to loud sounds (including music) is the most
common cause of preventable hearing loss. Some scientific
research suggests that using portable audio devices, such as
portable music players and cellular telephones, at high volume
settings for long durations may lead to permanent noise-induced
hearing loss. This includes the use of headphones (including