Modem Software Architecture

Architecture 1 Microprocessor only
Architecture 2 DSP + Microprocessor
Architecture 3 DSP only

GAO provides a complete range of software modem solutions from 300bps to 8Mbps.

GAO Modem Modules

ITU V.92 (Server & Client)

Maximum bit rate of 56 Kbps downstream
Maximum bit rate of 48 Kbps upstream

ITU V.90 (Server & Client)

Maximum bit rate of 56 Kbps downstream
Maximum bit rate of 33.6 Kbps upstream

ITU V.34

Maximum bit rate of 33.6 Kbps

ITU V.32bis
ITU V.32

Maximum bit rate of 14.4 Kbps
Maximum bit rate of 9.6 Kbps

ITU V.22bis
ITU V.22

Maximum bit rate of 2.4 Kbps
Maximum bit rate of 1.2 Kbps

ITU V.23

Maximum bit rate of 1.2 Kbps

ITU V.21

Maximum bit rate of 300 bps

Bell 212A

Maximum bit rate of 1.2 Kbps

Bell 103

Maximum bit rate of 300 bps

AT M

AT commands for modems

GAO Modem Protocols

ITU V.44

ITU Data compression procedures

ITU V.42bis

Data compression procedures for DCE using error correction procedures

ITU V.42

Error-correcting procedures for DCE using asynchronous-to-synchronous conversion

For a complete list of GAO’s Modem Software products, please see GAO’s Softmodem List.

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