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Re: [hylafax-users] FAX receiving problems with HylaFAX 4.1.7 and Multimodem MT5634ZBA-USB-V92



Lee Howard wrote:

The "total lines" comment here is wrong because the HylaFAX 4.1.7 (and even CVS currently) TIFF decoder is incapable of decoding (and therefore line-counting) MMR data (see http://bugs.hylafax.org/bugzilla/show_bug.cgi?id=223). This is of no consequence in Class 2/2.0/2.1 because HylaFAX 4.1.7 trusts the line count that the modem's firmware produces in the +FPS report...

OK, no worries there then.



Sep 10 16:49:08.88: [ 398]: --> [14:+FPS:1,0,0,0,0]


Which, in this case, says that there were no lines of TIFF image data among those 6732 bytes received. This almost certainly looks like a modem firmware problem, either with ECM protocol or with MMR decoding. Update your firmware, and if it is already updated, then contact MultiTech. If that's not a timely-enough solution, switch to Class 1 or disable MMR in Class 2.1.

I believe I have already checked the firmware revision, but will do so again. Otherwise I'll try Class 1 (had problems using Class 1 with the previous modem, but it was not a very high quality product).


What are the chances that Class 1 is going to work given that I'm using a USB interface to the modem? I'd be a little worried that using USB instead of a direct serial connection could cause some latency issues that might affect Class 1... although the modem is directly connected to the computer, not on a USB hub or shared with any other devices, so that may not be a valid concern at all.


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