Thread Subject: Re: TTY definition
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From: Jim Tobias
Date: Mon, Jun 18 2007 1:50 PM
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I think it can be shorter. For example, TIA-825 already mentions PSTN. How
An abbreviation for teletypewriter. Any product used for real-time text
communications in compliance with TIA-825-A, A Frequency Shift Keyed Modem
For Use On The Public Switched Telephone Network.
I changed "device" to "product" to allow for software TTYs.
From: Gregg Vanderheiden [mailto: = EMAIL ADDRESS REMOVED = ]
Sent: Monday, June 18, 2007 3:16 PM
To: 'TEITAC Telecommunications Subcommittee'
Subject: [teitac-telecom] TTY definition
How about this.
An abbreviation for teletypewriter. Device for real-time text based
communications through the transmission of coded signals across the public
switched telephone network (PSTN) in compliance with TIA-825-A, A Frequency
Shift Keyed Modem For Use On The Public Switched Telephone Network.
I thought of a lot of additional sentences to elaborate on this but
definitions should be short and keep to just those things that define the
word. This seemed to be the essence of what the TTY was. At least for the
purposes of our standard. (other countries might use the term differently,
and some, but not all, TTYs support other formats - but this is what makes
something a TTY - and is what we mean in our standard.)
Gregg C Vanderheiden Ph.D.
Professor - Depts of Ind. Engr. & BioMed Engr.
Director - Trace R & D Center
University of Wisconsin-Madison
< <http://trace.wisc.edu/> http://trace.wisc.edu/> FAX 608/262-8848
DSS Player at http://tinyurl.com/dho6b
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