Modem Software and Protocols

Modem Software

  •  

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

Software 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

GAO's Modem Software Architecture, click Modem Software Architecture

GAO's rigorous testing standards