Bill Grimsley wrote in a message to Alberto Pasquale:

AP> I have tested the new SDL and, with deep disappointment, I have
AP> noted that the old bug of all V34+ DSPs in adaptive answering 
AP> remains, one more time.  The Courier is unable to answer fax calls 
AP> from machines that do not send CNG.

 BG> Is this really a bug though?  In the absence of fax CNG tones, how
 BG> is the Courier supposed to know that the incoming call is a fax? 
 BG> Surely it should issue its modem connect tones instead, just as one
 BG> would expect? 

The problem is, in the absence of initial CHG tones, the USR does properly
start sending modem tones.  BUT it mistakenly thinks there's a modem on the
other end when the FAX machine does start sending its CHG tone during the
modem tone sequence.  The USR then attempts to connect modem-wise to the
CHG tone, usually thinking it's got a connect at some funky rate such as
7200 bps.

Proper behavior would be for the USR to ignore CHG during the modem
sequence, and recognize (and act on) the CHG tone properly thereafter.  I'm
sure it *will* be fixed, eventually.

However, for my two cents worth, I'd much rather have USR supply me with
the world's greatest modem rather than the world's greatest fax/modem.  FAX
is a back burner issue for me.  IMHO, if FAX is that important to you, you
should have a standalone FAX machine instead.

                                   - Bob
Internet  : bob{at}juge.com

--- timEd/2 1.10+