ABSTRACT
V.42bis (comp) An algorithm used by modems that
can compress data by ratios of 8:1, but in the real world this can be reduced to around 2.5 1.
V.90 (comp) Approved in February 1998, this standard replaces K56FIex and X2, providing a common protocol for 56K modems to access an ISP that supports V.90. 56K modems not V.90 ready must have Flash memory and will require firmware upgrades provided by the manufacturer.
