Re: [hylafax-users] Hardware suggestions to get Hylafax running?

["Joshua Kinard" <jkinard@xxxxxxxxxxx>]

-----Original Message-----
From: Lee Howard [mailto:faxguy@xxxxxxxxxxxxxxxx]

> IAXmodem is an entirely software modem... so all of the work is being
> done by the CPU.  However, the CPU usage should normally be negligible.

Yeah, I was thinking this would be the case.  Since this'll be on a Opty 270 Dual, it shouldn't even flinch.  And there's still a spare socket if I need to go Quad.


> Google a bit... read through the website: http://iaxmodem.sourceforge.net.

Will do, thanks!


> In the minimalist implementation (just to serve as a bridge between the
> hardware and IAXmodem) Asterisk is doing very, very little... basically
> only channelizing the T1 into IAX2 channels that the iaxmodem process
> can accept.  You can make Asterisk do more (like DID-specific work), but
> you don't have to.

I'm figuring that I'll probably be using Asterisk in the bare-bones config then.  If I can route all of this through my Rolm system, it'll do the legwork of the DID handling, and I'll just have to make sure that DID data goes from Asterick -> IAXmodem -> HylaFAX, and gets picked up properly by that one script where we program in all the didgist and what e-mails they route to.  That's gonna be fun to rig up.


> On hook... nearly nothing.  Off hook... each iaxmodem instance uses 0.2%
> of my CPU on a Pentium II 400 MHz.

Since I'm using something lightyears ahead of a P2/400, yeah, minimal.  Even if we faxblast a few thousand, I don't see this gobbling up anything noticable.

How about this Wedging issue I saw mentioned w/ Multitechs?  Non-issue when dealing with emulated modems?  Any other known cases involving runaway children (i.e., from IAXmodem) possibly grinding the server down?  Or is this kind of setup, while a touch complex, more bulletproof than dealing with multiport modem hardware?


Thanks!

--Josh


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