PE> I interpret the V34 spec to say that 64, 32
PE> and 16-state trellis coding are REQUIRED.

Welp, thats a dud interpretation, its not.

PE> However, it is in the hands of the
PE> answering modem to CHOOSE any one of the 3.

They are actually saying that those are what are covered by the
standard, but NOT that you absolutely must support all three.

PE> So in the case of you calling my M34F, it may well be
PE> that the M34F always asks for 16-state trellis coding.

It cant do 64S. It KNOWN that the Rockwell datapump cant do 64S.

PE> What evidence do you have that when the USR is CALLED by an M34F,
PE> that it DEMANDS 64-state trellis coding and is then REFUSED?

Its completely academic when we know the rockwell datapump has no 64S.

PE> I suspect that the M34F will indeed respond
PE> to any demand for 64-state trellis coding.

Just goes to show how dangerous it is to suspect then doesnt it ?

PE> Otherwise, how does the USR know that it is
PE> allowed to ask for 64-state trellis coding or not?

Thats all spelt out in that standard, how a range
of alts is offered and accepted or refused.

PE> How does it know there is another USR online, so it's OK to ask?

Brain fart.

PE> What does the calling modem do if the Courier
PE> asks for 64 state trellis coding?  Hang up?

Essentially says it can do 16S and they agree to use that.

PE> I think you'll find my theory is correct, that the M34F
PE> will respond to, but not initiate, 64-state trellis coding.

Fraid not, we know the rockwell datapump can do it.

PE> If I knew of a way of displaying the trellis coding used,
PE> I could call Dave Hatch and see what my modem reports.

Bit pointless if the datapump cant do 64S.
@EOT:

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