Pantech 78 User Manual

160 

•  Hearing Loss Association of America – 

 

 

http://www.hearingloss.org/learn/cellphonetech.asp

•  CTIA – 

http://www.accesswireless.org/Disability-Categories/Hearing.aspx 

•  Gallaudet University, RERC – 

http://tap.gallaudet.edu/voice 

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.

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