On Tue, 9 Nov 2010, Daniel Tryba wrote: > On Mon, Nov 08, 2010 at 02:44:26PM -0500, Jeff LaCoursiere wrote: >>> It could be the echo canceller, I had this kind of problem with OSLEC. I >>> also thought the PRI provider was sending clipped audio. I switched to >>> the VPM450 daughterboard and since audio has been crystal clear. What is >>> your setup for echo cancelling? >>> >> >> I inherited this board, and don't think it has the echo canceller >> daughterboard. Is there a way to query for it without taking the machine >> down? It is loading MG2 otherwise. > > My problem seemed to be OSLEC specific (Debian stable with zaptel), > switching to MG2 made my problems dissapear but overall voice quality is > lower IMHO. You could try disabling ec all together and check if > clipping still occurs. But it does sound like an operator problem if you > get errors. >
So it did in fact turn out to be a problem with the link itself. The carrier switched line pairs somewhere upstream and everything was back to normal. I am curious about the tool "dahdi_maint"... what do the various acronyms stand for? I tried to communicate with the line tech the errors I was seeing accumulate (the first four and the last one), but the acronyms didn't mean anything to him. Are they standard telco stuff? I reset them after the line repair, and one is still accumulating, though very slowly. The "76" is over 24 hours. r...@vigw3:/etc/asterisk# dahdi_maint -s 1 Span 1: >FEC : 0: >CEC : 0: >CVC : 0: >EBC : 0: >BEC : 0: >PRBS: 0: >GES : 76: Cheers, j -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
