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• Hearing Loss Association of America –
http://www.hearingloss.org/learn/cellphonetech.asp
• CTIA –
http://www.accesswireless.org/Disability-Categories/Hearing.aspx
• Gallaudet University, RERC –
TELETYPEWRITER (TTY) DEVICES
You can use an optional teletypewriter (TTY) device with your phone to send and
receive calls. You must plug the TTY device into the phone' s headset connector
and set the phone to operate in one of three TTY modes.
A TTY is a communication device used by people who are hard of hearing or have
a speech impairment. TTY does not work from mobile phone to mobile phone.
Use a TSB-121 compliant cable (provided by the TTY manufacturer) to connect
the TTY device to your phone. Your phone has a 2.5mm jack. Set the phone to
Medium volume level for proper operation. If you experience a high number of
incorrect characters, adjust the volume as needed to minimize the error rate.
For optimal performance, your phone should be at least 12 inches (30
centimeters) from the TTY device. Placing the phone too close to the TTY device
may cause high error rates.
FDA CONSUMER UPDATE
1. Do wireless phones pose a health hazard?
The available scientific evidence does not show that any health problems are
associated with using wireless phones. There is no proof, however, that wireless
phones are absolutely safe. Wireless phones emit low levels of radiofrequency
160
http://tap.gallaudet.edu/voice
U.S. FOOD AND DRUG ADMINISTRATION - CENTER
FOR DEVICES AND RADIOLOGICAL HEALTH
CONSUMER UPDATE ON WIRELESS PHONES
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