SIRBU@MIT-MC.ARPA ("Marvin A. Sirbu, Jr.") (10/30/85)
The CCITT has adopted a standard for 9600 baud full duplex modems running over dial-up lines (V.32) which uses Trellis encoding (send redundant bids and do forward error correction). The design is based on research done by AT&T. Virtually all the modem vndors are working on V.32 compatible products. The only one I know to have hit the market already is from British Telecom. I would think it highly unlikely that any modem not compatilbe with V.32 will become a de facto standard. Marvin Sirbu
ms6b#@andrew.cmu.edu.UUCP (01/28/87)
For a survey of the state of the art in modem theory and design see the IEEE Journal on Selected Areas in Communication for September 1984, "Special Issue on Voiceband Telephone Data Transmission" You might also look at Roger Freeman, "Telecommunication Transmission Handbook" (Wiley 1981). -------