-=> Quoting Craig Ford to Richard Town <=-

 CF> CF> Just hold on Richard, you'll eat crow again.
 RT>  Symbol  Expected data   Preemphasis carrier
 RT>  rate    rate
 RT>  2400    1001            0011        0
 RT>  2743    1010            0011        0
 RT>  2800    1010            0011        0
 RT>  3000    1011            0100        0
 RT>  3200    1100            0100        0
 RT>  3429    1100            0100        0
 CF> You're on the right path, now keep looking. It is staring you in the
 CF> face but you can't see it.

USR chooses the 3200 symbol rate when answering a call from a modem
that doesn't support the 2743 symbol rate and that indicates the same
maximum projected data rate for both the 3200 and 3429 symbol rates.  This
does not match what other V.34 implementations do.  By choosing the 3200
symbol rate instead of the 3429 symbol rate USRs are giving up about 2dB of
SNR.  On a lot of lines that is the same as giving up one data rate.

I'm not going to freely do what well paid techies should have done
However were you to examine your INFO1c and INFO1a sequences you will
see what has and what has not been deliberately done to deceptively
try and enhance USR's position in the market place.  Shame on Skokie!

Kinda puts into perspective those Telequality Assoc and other, oh-so-
authorative, "reports" dunnit?

 RT> 'Cept that it don't work, coz your favourite modem is deficient 
 CF> It isn't part of any ITU recommendation.

Neither is HST nor V32terbo.  In thruput terms, given that on good links
MNP/V42bis outperformed pre-SREJ LAP-M, this was yet another method to
deliberately strike a performance difference between budget modems and
USRs by design

It's called Modem Apartheid.  ie USRs are deliberately configured to
recognise the colour of callers' money spent on modem in deciding
what performance to achieve.

 CF>  ! Origin: Running the "Intelligent Choice" * 713-458-0237 *
                             ^^^^^^^^^^^^^^^^^^
                             You've been conned

rgdZ
Richard

... Boo!  Hiss!   

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