|Created with the Web Accessibility Wizard||Slide 12 of 24|
Digital cell phones used to garble TTY.
TTY doesn’t behave like voice – switches between two frequencies very quickly
Small transmission errors make large error rates in TTY.
FCC ordered the industry to fix the problem so that deaf people can call 9-1-1 while mobile
Problem fixed as of 2002. (Some bugs may remain.)
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