Paul, at 22:24 on May 09 1996, you wrote to Bill Grimsley...

BG> I don't think you actually understand how adaptive answer works.  It's not 
BG> a function of the remote modem at all.  If YOUR modem hears fax CNG tones 
BG> from the remote device, it should automatically switch into fax mode, and 
BG> issue the fax connect tones.  However, if it hears nothing (as is normal 
BG> when a modem calls), it issues its modem connect tones instead.  Therefore, 
BG> if you have a problem, it's with YOUR modem, nobody else's.

PE> How do you explain that you could connect to me OK, but Brenton couldn't?  

As I said, the problem is definitely at YOUR end.

PE> Further to that, I tried going back to adaptive answer, and called
PE> voice, to find out what happened.  There was a pause of 2-3 seconds,
PE> then the modem tones (as I know them) came out,

Which is EXACTLY what SHOULD be happening when your modem answers.

PE> followed by it printing "FAX" on the screen and then
issuing fax tones.

That's pretty unusual, but it may be a normal function of the Viper's code
to automatically assume that if the remote doesn't respond to it's modem
connect tones, that it may be a fax on the other end instead, and it then
tries to connect with its fax tones.  Not a bad idea at all, if that's
true.

PE> I *think* that might be because it is presuming that if it didn't get a 
PE> modem, and it didn't get the other guy issuing fax tones, then maybe its
PE> an old-style fax machine and issuing the fax tones itself.

Yeah, I'm not familiar with how the Viper has been coded to function in
adaptive answer mode, so that's quite possible, although if that's what's
happening, it's certainly not standard fax/modem behaviour.  Ordinarily,
the modem should only issue fax tones if it hears CNG tones from the
remote.

What does the Viper manual have to say about that?

Regards, Bill

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