(PM) OT: V.90 speeds - why that way? (fwd)

MegaZone (megazone@megazone.org)
Sun, 14 Mar 1999 13:59:42 -0800 (PST)

Once upon a time Tony Harris shaped the electrons to say...
>I was sittin here this sunday, and started wondering - does anyone know why
>ITU standards seemed to pick the X2 speed standards for what V.90 does? I
>mean, I've seen the same numbers on an X2 connection that I have on a V.90
>connection - I just wondered why the standards went that route, instead of
>the route KFlex went...?

Standards process. The ITU-T doesn't like to favor any one vendor in
the process, so they always build the standard with pieces from the
proposals (unless one is just horrid). In the case of V.90 they chose
to use the signal spectrum of X2. Hence V.90 shares the same speed
incriments as X2. But most of the higher level stuff - pad detection,
negotiation, etc, came from K56flex. Along with things that were new
to V.90, mainly some things from Motorola.

-MZ

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