<br><br><div class="gmail_quote">On Sun, Jul 19, 2009 at 10:57 AM, <span dir="ltr"><<a href="mailto:research@businesstz.com">research@businesstz.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Hello Team<br>
<br>
I have installed the new DL580 and used the new TE420B to add capacity on<br>
our ivr. Before I put new E1’s I decided to first move the old e1 from the<br>
old system to this new one but it has errors which not only affect the<br>
audio quality, but also cause the asterisk to refuse any call after<br>
sometime even though the channels seems up and active {seems d-channel<br>
fails}..</blockquote><div><br></div><div><SNIP> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><br>
[Jul 18 07:24:01] NOTICE[15961] chan_dahdi.c: PRI got event: HDLC Bad FCS<br>
(8) on Primary D-channel of span 1<br>
[Jul 18 07:27:59] NOTICE[15964] chan_dahdi.c: PRI got event: HDLC Abort<br>
(6) on Primary D-channel of span 4<br>
[Jul 18 07:30:58] NOTICE[15963] chan_dahdi.c: PRI got event: HDLC Bad FCS<br></blockquote></div><br clear="all">Am I right in reading that you're using a HP DL580?<div>I had very similar problems using a DL145, earlier on, and a number of users suggested that this might be due to custom PCI bridge chipsets on HP motherboards.</div>
<div>The theory is that the PCI chipsets are designed with specialist timing to shave nanoseconds off interrupt times, so that you get better hard disk throughput.</div><div><br></div><div>However, it does tend to murder E1 timing, and breaks the entire system.</div>
<div>I resolved the problem by using a non-branded server with a more standard Tyan motherboard, all timing problems went away, and the system worked perfectly.</div><div>I know it doesn't really sound very helpful to blame the entire server manufacturer, but some others might agree, brand spanking new and shiny might not be the best thing for Asterisk, especially these cards.</div>
<div>HTH</div><div>-- </div><div>Tom O'Connor<br><br><a href="http://www.twinhelix.org">http://www.twinhelix.org</a><br><a href="mailto:tom@twinhelix.org">tom@twinhelix.org</a><br>
</div>