is there static on the line??<br>is there timing slips and crc4 errors? <br>are they increasing throughout the day?<br>are you getting timing slips during the day when users are using the phones and not off-peak hours?<br>
are you getting hdlc abort erros when you hear a static noises??<br><br>is the card sharing irq? <br>is your system plugged directly into an outlet without ups?<br><br><div class="gmail_quote">On Fri, Nov 2, 2012 at 8:40 PM, Edwin Lam <span dir="ltr"><<a href="mailto:edwin.lam@officegeneral.com" target="_blank">edwin.lam@officegeneral.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">hi folks.<br>
<br>
recently some of our customers complained about bad voice<br>
quality on the phone system. i looked at the logs and found<br>
a lot of these:<br>
<br>
[2012-11-03 08:26:38] NOTICE[11305] chan_dahdi.c: PRI got event: HDLC Abort (6) on D-channel of span 1<br>
[2012-11-03 08:26:45] NOTICE[11305] chan_dahdi.c: PRI got event: HDLC Abort (6) on D-channel of span 1<br>
[2012-11-03 08:26:54] NOTICE[11305] chan_dahdi.c: PRI got event: HDLC Abort (6) on D-channel of span 1<br>
<br>
i upgraded Asterisk/dahdi/libpri. tried turn on/off echo canceller etc.<br>
nothing seems to help. call the phone company to check out the line<br>
(which they said it's working fine)<br>
<br>
any idea? do i have a hardware issue here? i've check syslog<br>
there was no dahdi errors.<br>
<br>
here's my system.conf:<br>
span=1,1,0,esf,b8zs<br>
bchan=1-23<br>
dchan=24<br>
span=2,0,0,esf,b8zs<br>
bchan=25-47<br>
dchan=48<br>
span=3,0,0,esf,b8zs<br>
bchan=49-71<br>
dchan=72<br>
span=4,0,0,esf,b8zs<br>
bchan=73-95<br>
dchan=96<br>
<br>
and here's my chan_dahdi.conf:<br>
[channels]<br>
switchtype=national<br>
pridialplan=unknown<br>
prilocaldialplan=unknown<br>
internationalprefix = 001<br>
nationalprefix =<br>
unknownprefix =<br>
signalling=pri_cpe<br>
usecallerid=yes<br>
usecallingpres=yes<br>
echocancel=no<br>
echocancelwhenbridged=no<br>
group=1<br>
callgroup=1<br>
pickupgroup=1<br>
faxdetect=incoming<br>
context=defaultspan1<br>
channel => 1-23<br>
<br>
<br>
-- <br>
Edwin Lam <<a href="mailto:edwin.lam@officegeneral.com" target="_blank">edwin.lam@officegeneral.com</a>><br>
Systems Engineer, OfficeWyze, Inc.<br>
Ph: <a href="tel:%2B1%20415%20439%204988" value="+14154394988" target="_blank">+1 415 439 4988</a> Fax: <a href="tel:%2B1%20415%20283%203370" value="+14152833370" target="_blank">+1 415 283 3370</a><br>
<a href="http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0xD6506D20" target="_blank">http://pgpkeys.mit.edu:11371/<u></u>pks/lookup?op=get&search=<u></u>0xD6506D20</a><br>
<br>
<br>
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</blockquote></div><br>