Re: [hylafax-users] Sometimes send and never receive

[Lee Howard <faxguy@xxxxxxxxxxxxxxxx>]

Chris Weiss wrote:
> unless your server has a light load and your phone connection is
> crystal clear, a soft modem is never going to be reliable for faxing.

I've run 256 soft modems (IAXmodems) on one system (a single 2GHz 64-bit 
AMD CPU) all of them simultaneously either sending or receiving, and it 
wasn't a problem in the testing.  In fact, I did deliberately try to 
make it fail, and the point of failure was never the CPU load or memory 
load caused by the soft modems.  The most likely point of failure 
involving CPU or memory loads was due to more than a hundred Ghostscript 
image conversions of large image files that (in a contrived scenario) 
all happened at exactly the same moment.

I'd venture to guess that the problem isn't so much with soft modems per 
se, but rather with the particular modem itself (soft or hard) being 
discussed.  In this case the OP was discussing Linuxant, and this list 
has seen a vast number of ill reports regarding Linuxant modems.

As far as the need for crystal-clear connections... again, DSP tolerance 
will vary from modem to modem and it has relatively nothing to do with 
the modem being soft or hard.

Thanks,

Lee.


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