v.90

1 definition found

v.90 - Free On-line Dictionary of Computing (26 May 2007) :

  V.90
  V.pcm
  
     <protocol> An ITU-T standard modem serial line
     protocol allowing download speeds of up to 56 kbps with
     upload speeds of 33.6 kbps.  V.90 modems are designed for
     connections that are digital at one end and have only one
     digital-to-analogue conversion.
  
     As of 1998-02-06 the V.90 standard, formerly called V.pcm, has
     been given final approval by ITU-T.  On 1998-10-27 the ITU-T
     announced that approval of the V.90 standard was completed.
     Interoperability testing is complete or in progress for
     several modem manufacturers.  The V.90 standard reconciles two
     competing standards, X2 and K56flex.
  
     The ITU-T has initiated the approval process for a new
     all-digital version of the protocol, to be known as V.91.
  
     ITU Press Release 98-04 (http://itu.int/newsroom/press/releases/1998/98-04.html)
     .
     and NP-3 (http://itu.int/newsroom/press/releases/1998/NP-3.html)
     .
  
     (1999-01-25)