TIA/EIA/IS-840
Minimum Performance Standards for Text Telephone Signal Detector and Text Telephone Signal Regenerator
inactive
| Organization: | TIA |
| Publication Date: | 1 May 2000 |
| Status: | inactive |
| Page Count: | 31 |
Document History
September 1, 2001
Minimum Performance Standards for Text Telephone Signal Detector and Text Telephone Signal Regenerator
Introduction
Text telephones enable persons with hearing issues to communicate over conventional telephone lines, using written text messages. There are two types of text telephones: TTY (Tele TYpe)...
TIA/EIA/IS-840
May 1, 2000
Minimum Performance Standards for Text Telephone Signal Detector and Text Telephone Signal Regenerator
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