PE> Can you do this, please. Matthew has started calling with a
 PE> 2400 baud modem and having the same problem that Michael was
 PE> having. I want to know if it is related to EC or speed. Just as
 PE> your normal calls, can you change those things. First of all
 PE> try 2400 with EC. Tell me what sort of errors you get, but
 PE> don't abort the call, let the software continue, as otherwise I
 PE> get no useful log entry.

  okay

 PE> I wonder what the problem is likely to be? It can't be CTS/RTS
 PE> not working because of a dud cable or dud setting, because
 PE> otherwise I'd have the same thing happening when sending to
 PE> people at 28800 (since I have my port at 57600). 

  It seemed to be very regular the last time, as if it had something
to do with the buffer.

  When I was fiddling with zmodem I had a similar problem at low speed
when I was using a fixed delay in reading from the buffer. A fast
computer can read from or write to the buffer faster than the modem,
and when it empties or overflows the buffer you have to ask it to
wait... to see if more is coming. I was using a fixed delay that was
not long enough at low speed. I had to write a loop to keep looking,
with a cut-out delay so that if nothing happend for 0.5 seconds it
assumed the message had ended.

  Maybe it's something like that. Can you change the size of the
buffer at your end? Make it smaller for 2400? I did play with it here,
but it was okay.

  It could still be CTS/RTS at your end. It may be that this never
gets asked to work at high speed, but at 2400 everything blocks up
and CTS/RTS is used every 6K (or whatever it was.... I forget) does
not work, and then zmodem kicks in and asks to resend. 

Regards,
Bob

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