On 17/05/2012 2:47 PM, gincantalupo wrote:
Hi Steve,
you are telling me there is no way to set a particular speed on my
iaxmodem in order to force the sender speed?
I have some problems with a customer who gets malformed faxes even if
no error occurs. Since I cannot tell the sender to lower its fax
speed, my idea is to force my iaxmodem to a lower fixed speed so the
sender is oblidged to negotiate at that speed (or lower, of course)
without the customer could realize it, at least at first. :)
There is no ATA in the middle (I'm using it for my tests but my
customer does not have any), all faxes are received thru a primary
channel to a bunch of iaxmodems. Sometimes some faxes are corrupted,
that's why I thought to lower the speed. I could try to disable ECM
but that's even harder to do (found nothing on internet).
Hi Giorgio,
You may want to try these settings to set the most basic form of
transmission on your receiving modems, I would however have thought, ECM
being on would be better for you as it could then deal with lost frames.
Class1MRSupport: no
Class1MMRSupport: no
Class1ECMSupport: no
To set the ECM frame size to a lower value than the default of 64, you
would set the following
Class1PersistentECM: yes
Class1ECMFrameSize: 64
Perhaps the corruption is occurring at the senders end before the data
is pushed through the modem.
Cheers,
Larry.
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