User's Manual

106
aids operating in the telecoil mode thus reducing
unwanted background noise.
HOW WILL I KNOW WHICH WIRELESS PHONES
ARE HEARING AID COMPATIBLE?
The Hearing Aid Compatibility rating is
displayed on the wireless phone box.
A phone is considered Hearing Aid Compatible for
acoustic coupling (microphone mode) if it has an
“M3” or “M4” rating. A digital wireless phone is
considered Hearing Aid Compatible for inductive
coupling (telecoil mode) if it has a “T3” or “T4” rating.
HOW WILL I KNOW IF MY HEARING AID WILL
WORK WITH A PARTICULAR DIGITAL
WIRELESS PHONE?
You’ll want to try a number of wireless phones so that
you can decide which works the best with your
hearing aids. You may also want to talk with your
hearing aid professional about the extent to which
your hearing aids are immune to interference, if they
have wireless phone shielding, and whether your
hearing aid has a HAC rating.
FOR MORE INFORMATION ABOUT HEARING
AIDS AND DIGITAL WIRELESS PHONE
y FCC Hearing Aid Compatibility and Volume Control –
http://www.fcc.gov/cgb/dro/hearing.html
y Hearing Loss Association of America –
http://www.hearingloss.org/learn/cellphonetech.asp
y CTIA – http://www.accesswireless.org/hearingaid/
y Gallaudet University, RERC –
http://tap.gallaudet.edu/voice