From: Ian FREISLICH <[email protected]> To: Asterisk on BSD discussion <[email protected]> Sent: Sat, August 7, 2010 4:47:40 AM Subject: Re: [Asterisk-bsd] OSLEC on FreeBSD 8.1 w/ DAHDI
"Kurt J. Lidl" wrote: > Has anybody gotten this to work? > > I'm contemplating buying hardware to interface to the PSTN, > and of course, the boards without hardware echo cancellation > are far cheaper than those with hardware echo cancellation. > If I don't buy something with hardware echo cancellation, > I'd like to know that the OSLEC software was working, or > at least close to it. > > There was some discussion about this back in Sept 2009, > but I never saw a real resolution to the problem. Also, > that discussion was saying that it was only going to work > on amd64 based machines (whereas I have i386) and I'm > running 8.1, not 9-CURRENT. You have it the wrong way around. OSLEC "works" FSVO works on i386, but not amd64. The reason it compiles on i386 is that floating point math while banned from the kernel isn't specifically excluded by compiler flags like it is in amd64. That said, if you use OLSEC on i386, expect user space floating point corruption by the kernel because FP state is not saved on kernel entry. So, while calls are in progress OSLEC will stomp all over user process FP math. Ian -- Ian Freislich -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- Asterisk-BSD mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-bsd What's such a drag about this is that several years ago I had an X101P pci card working with my Asterisk server and it sent and received calls through my PSTN service without any troubles at all. There was no echo problems and it really, really worked, all with a card which only costs $15. But alas, some wiseguys took out the FXO module in zaptel port. I tried different things including loading Linux Fedora and DAHDI. That worked but it echoed like crazy with PSTN calls. By then the cable company was offering full VOIP service for only $19 per month. My Asterisk server has now being used as a VOIP server with a provider so my wife can call her family in Brazil. And I'm running that on a server which does not have an old PCI slot for the X101P card I still have. That's progress for you.
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