H820 TITAN Owner’s Manual AT&TUSA en

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For Your Safety 152

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 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.

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

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

Hearing Loss Association of America [HLAA]

http://hearingloss.org/content/telephones-and-mobile-devices

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Owner’s Manual AT&TUSA en - Page 153