ITU-T V.23 standard is 600/1200-baud modem standardized for use in the general switched telephone network. GAO's V.23 Modem software implements the ITU V.23 recommendation for data signaling speeds of 600bps and 1200bps using the FSK technique. The center frequencies are 1500Hz and 1700Hz. GAO's modem software implementation also supports a backward channel of 75bps.
For examples of GAO's Modem Software Architecture, click GAO's Modem Software Architecture.
For a complete list of GAO's Modem Software products, please see GAO's Softmodem List.