User Manual
Table Of Contents
HEARI NG AI D COMPATI BI LI TY HAC FOR WI RELESS TELECOMMUNI CATI ONS DEVI CES
THIS PHONE HAS A HAC RATING OF M4/T3
WHAT I S HEARI NG AI D COMPATI BI LI TY?
The Feder al Communi c at i o ns Commi ss i on ha s i mpl ement ed r ul es and a r at i ng s yst em desi gned t o enabl e
peopl e who wear hear i ng ai ds t o mor e ef f ect i vel y use t he se wi r el ess t el ec ommuni c at i ons devi c es. The
st an dar d f or compa t i bi l i t y of di gi t al wi r el ess phones wi t h hear i ng ai ds i s s et f or t h i n Amer i c an
Nat i onal St andar d I ns t i t ut e ( ANSI ) st andar d C63. 19. Ther e ar e t wo set s of ANSI st an dar ds wi t h r at i ngs
f r om one t o f our ( f our bei ng t he be st r at i ng) : an “ M” r at i ng f or r educ ed i nt er f er ence mak i ng i t
eas i er t o hear c onv er s at i ons on t he phone when us i ng t he he ar i ng ai d mi c r ophone, and a “ T” r at i ng
t hat e nabl es t he phone t o be us ed wi t h hear i n g ai ds oper at i ng i n t h e t el e- co i l mode t hu s r educi ng
unwant ed backgr ound noi s e.
HOW WI LL I KNOW WHI CH WI RELESS PHONES ARE HEARI NG AI D COMPATI BLE?
The Hear i ng Ai d Compat i bi l i t y r at i ng i s di spl ay ed on t he wi r el es s phone box .
A phone i s c ons i der ed Hear i ng Ai d Compat i bl e f or acoust i c c oupl i ng ( mi c r ophone mode) i f i t has an “
M3” or “ M4” r at i ng. A di gi t al wi r el e ss phone i s c onsi der ed Hear i ng Ai d Compat i bl e f or i nduct i ve
coupl i ng ( t el e- co i l mode) i f i t has a “ T3” or “ T4” r at i n g.
HOW WI LL I KNOW I F MY HEARI NG AI D WI LL WORK WI TH A PARTI CULAR DI GI TAL WI RELESS PHONE?
You’ l l want t o t r y a n umber of wi r el ess phones s o t hat y ou c an deci de whi ch wor ks t he bes t wi t h y our
hear i n g ai ds. You may al s o want t o t al k wi t h y our hear i ng ai d pr of ess i onal about t he ex t ent t o whi c h
your hear i ng ai ds ar e i mmune t o i nt er f er ence, i f t he y hav e wi r el ess phone s hi el di ng, and whet her y our
hear i n g ai d has a HAC r at i ng.
FCC Hear i n g- Ai d Compat i bi l i t y ( HAC)
Reg ul at i on s f or Wi r el es s Devi ces
On J ul y 10 , 2003, t he U. S. Feder al Communi c at i ons
Commi s s i on ( FCC) Repor t an d Or der i nWT Dock et 01-
309 modi f i ed t he ex c ept i on of wi r el ess phones under t he
Hea r i ng Ai d Compat i bi l i t y Act of 1 988 ( HAC Act ) t o r equi r e di gi t a l wi r el es s phones be c ompat i bl e wi t h
hear i n g- ai ds.