This is what I was using at the time: asterisk-1.4.21.2 libpri-1.4.6 wanpipe-3.2.7 zaptel-1.4.11 spandsp 0.0.4pre16 unknown rx_fax version.
As I can see there is a 0.0.6pre16 version now.. At the time, I used this tutorial I found on the net to setup rxfax/spandsp: http://www.asteriskguru.com/tutorials/spandsp.html Which in its self, is extremely old. I was using PSTN. I cut the error rate tremendously when I rebuild the box as there was a pci-express timing issue (I had a 50% fail rate before that), as the PSTN hardware provided determine from examining server logs. But some callers just could not send a fax, it would fail every time, and I just couldn't reproduce it.. I look forward to retrying out spandsp on my next build or server upgrade. Thank you Steve for responding to my post, and all the work you put into SpanDSP & the Asterisk Community. William Stillwell -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Steve Underwood Sent: Thursday, January 07, 2010 8:55 PM To: [email protected] Subject: Re: [asterisk-users] Faxing: Anyone have a compiled executable? On 01/08/2010 06:05 AM, William Stillwell (Lists) wrote: > Has there been any improvement with app_fax ? > > I stopped using it as I had a high failure rate with inbound faxes (10%+) > 1000 faxes a week ,with over a 100 failures can get quite annoying from > people complaining.. I could get it to fail everytime I tried sending a > solid black fax page. > > (ie, take a sheet of paper that is all black, or heavily black, and fax it, > I got a ton of errors, or just plain rx reception failure).. > If you want an idea of the performance level to expect from app_fax see http://www.soft-switch.org/spandsp-soft-fax-performance.html If 10% of your FAXes are failing, and they really have the potential to succeed (i.e. not voice calls, wrong numbers, etc), that's awful. Anything above 1% is poor. app_fax on a well set up system, with no timing issues, achieves >99% success for PSTN calls. Results with calls on the internet will vary, depending on the quality of your VoIP links. T.38 calls are generally far more reliable than audio ones across the internet. Are you using PSTN or VoIP connexions? Sending a black page is no harder than sending a white one. If you want a real stress test, try the checkerboard pattern TIFF file page, amongst the spandsp test data. That takes about half an hour to send one page. On a well set up system you should be able to send or receive those pages all day. If you can't, you probably have timing issues in your Asterisk setup. If you are going to ask if something has improved, its rather important to say which versions you are running now, and how you use them. Steve _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
