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Hearing Aid Compatibility With Digital Wireless Cell Phones: An Update for Audiologists, Physicians, and Hearing Instrument Specialists

By CTIA - The Wireless Association
Publication Date: 2009

Brochure provides information to hearing aid professionals regarding cell phone compatibility with hearing instruments. The physics of radio frequency (RF) and electromagnetic (EM) interference from digital wireless telephones when used with hearing aids is explained. The 2005 Federal Communications Commission (FCC) rules are discussed, as regards the requirements of wireless phone manufacturers to provide wireless carriers with cell phones with reduced RF emissions. Also described is the emissions rating system, based on the American National Standards Institute (ANSI) C63.19 standard, which assigns a rating of M3 or M4 to wireless instruments with emissions sufficiently reduced for hearing aid compatibility, a rating which applies to hearing aid immunity to RF interference as well. The T3 and T4 cell phone ratings regarding telecoil-coupling capability, resulting from a 2006 FCC requirement, are also outlined. Other information provided in the brochure includes shopping for a hearing aid compatible cell phone, locating the ratings labels on the phones, trying out different phones in the store, and checking return and exchange policies. A resource list for additional information on cell phone compatibility with hearing aids is appended. The brochure is available in PDF at the AccessWireless.org website.
Published by:
CTIA - The Wireless Association   (Website:http://www.ctia.org/)
Link to text: http://www.accesswireless.org/hearingaid/brochures.cfm
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