LYCOS RETRIEVER 
Baudot Code
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Baudot Code underwent modifications over time, but remained conceptually the same until ASCII came along. This code, introduced in the 1960s as a 7-bit binary encoding, came into its own with the advent of the now-familiar 8-bit byte in personal computers. Since ASCII provided 128 (and later 256) possible characters, computers could use lowercase letters.
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Modern versions of the Baudot Code usually use groups of seven or eight "on" and "off" signals. Groups of seven permit transmission of 128 characters; with groups of eight, one member may be used for error correction or other function.
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Although there is some debate as to the correct designation of this 5 bit code it is commonly known as Baudot although some prefer Murray; ... the correct designation is usually understood to be: International Telegraph Alphabet No 2 (ITA2). (The ASCII code is International Alphabet No 5 (IA5), according to 'A Basic Guide to Data Communications', published by BACT/OFTEL 1993.)
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The Intele-Modem is an external modem that automatically converts ASCII code to Baudot code, enabling the user to talk to various types of TDDs and computers and to use a personal computer (PC) as a telecommunication device. Intele-Modem connects directly to the phone line and works with standard communication software (AT/Hayes compatible command set) and BBS (bulletin board system) software. The unit automatically detects ASCII and Baudot calls; lights on the front panel indicate the current operating mode and line status. The modem has a built-in speaker with volume control for audio monitoring. Visual call progress monitoring indicates dial tone, ringing, or busy signal. Intele-Modem works with tone or pulse dialing, and automatic or manual telephone answering.
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Baudot is a 5-unit start-stop code. (It is described in International Telegraph Alphabet No. 2, and defined in International Telegraph and Telephone Consultative Committee (CCITT) Recommendation F.1, Division C.) In addition to Baudot, I will describe an incompatible variant used by Illiac, a first-generation computer designed in the late 1940's and in production from 1952 through 1962 at the University of Illinois at Urbana- Champaign.
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Dixie Ziegler, Director of Relay for Hamilton Telecommunications, stated that 'Hamilton is convinced that relay calls that make use of Turbo Code are faster and more efficient because neither party has to wait for Baudot tones to finish. With Turbo Code, relay conversations more closely achieve a natural rate of conversation.'
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Baudot Code