SOME DIGITAL CELL PHONES can be used WITH A T-COIL
2001; Lippincott Williams & Wilkins; Volume: 54; Issue: 6 Linguagem: Inglês
10.1097/01.hj.0000294240.13816.9e
ISSN2333-6218
Autores Tópico(s)ICT Impact and Policies
ResumoI am responding to “Digital cell phones and hearing aids: The problem is mostly solved,” the Page Ten article by Mead C. Killion in the March 2001 Hearing Journal. It has been generally assumed that people who use telephone switch-equipped hearing aids with digital cellular telephones are required to use an accessory (such as a headset or neckloop) that permits the cell phone to be held at some distance from the hearing aid to avoid the severe buzzing interference that otherwise would normally occur when the cell phone ear piece is held directly over the hearing aid. However, I have had recent reports of certain digital cell phone models that can be used with telephone coils directly (without accessories) that do not cause excess buzzing interference. The ear pieces of these models emit an extremely strong magnetic field and have volume controls so that it may be possible to turn down the volume on the hearing aid, which will result in a reduction of interference. Also, these phones are designed so that the ear piece swivels open (rather than the mouth piece). As a result, the main body of the cell phone is positioned further away from the hearing aid t-coil, thus perhaps further reducing buzzing interference. In addition, these models all use the CDMA modulation scheme. These models are as follows: Motorola Startac 7868 (service provided by Verizon), Motorola Startac 7867 (service provided by Sprint), and Samsung SCH 3500 (service provided by Sprint or Radio Shack). JOSHUA M. GENDEL, Director Assistive Technology Center League for the Hard of Hearing New York
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