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

["Kevin P. Fleming" <kpfleming@xxxxxxx>]

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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