User`s guide

Apple Serial Modem software
MODEM
ITU V21 300 bps Full Duplex
ITU V22 1200 bps Full Duplex
ITU V22 Bis 2400 bps Full Duplex
ITU V23 1200/75-75/1200 bps Full Duplex
ITU V32 Bis 14400 bps Full Duplex
ITU V34 28800 bps Full Duplex
U.S. Standards Bell 103 and 212A Full Duplex
FAX
ITU V27 ter 4800 bps Half Duplex
ITU V29 9600 bps Half Duplex
ITU V17 14400 bps Half Duplex
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Technical Specifications