Re: [hylafax-users] A Hint about Devolo Microlink Fun II and Failure to train remote modem

[Lee Howard <faxguy@xxxxxxxxxxxxxxxx>]

Heino Backhaus wrote:

> All of these initstrings seems to be unnessassary the only parameter 
> wich is realy needed is
> DCE-DTE-Speed of 57600bps. if I change this to 19200bps i got the same 
> problem again.
> It`s a little strange to me that the problem occurs only by sending a 
> fax to the HP OfficeJet. Sending it to an other
> Hylafax Server works good with 19200.
> In addition i tested 38400bps wich works fine too.
>
> Lee, do you got an idea why the problem occurs at DCE-DTE-Speed of 
> 19200bps ?


No, I really don't understand this.  Obviously, however, it's some issue 
with the modem's flow control or internal buffer.

It's interesting to see that the Elsa MicroLink 56K Class 2.0 config 
uses a ModemRate of 115200 (unexplained).  Maybe this is a longstanding 
issue with Elsa/Devolo modems.

> I would understand this if it would occur at speeds faster than 19200bps.
>
> I think the initstrings related with flowcontrol are still important. 
> Because the traditional &K3 &K4 etc...
> commands are not working with this modem.


Can you send me an output of probemodem run on this modem, your modem 
config file, and a session log (both sending and receiving), and I'll 
construct a prototype config file for this modem.

Thanks.

Lee.


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