[asterisk-users] PRI got event HDLC Abort

[Edwin Lam]

hi folks.

recently some of our customers complained about bad voice
quality on the phone system. i looked at the logs and found
a lot of these:

[2012-11-03 08:26:38] NOTICE[11305] chan_dahdi.c: PRI got event: HDLC Abort (6) on 
D-channel of span 1
[2012-11-03 08:26:45] NOTICE[11305] chan_dahdi.c: PRI got event: HDLC Abort (6) on 
D-channel of span 1
[2012-11-03 08:26:54] NOTICE[11305] chan_dahdi.c: PRI got event: HDLC Abort (6) on 
D-channel of span 1

i upgraded Asterisk/dahdi/libpri. tried turn on/off echo canceller etc.
nothing seems to help. call the phone company to check out the line
(which they said it's working fine)

any idea? do i have a hardware issue here? i've check syslog
there was no dahdi errors.

here's my system.conf:
span=1,1,0,esf,b8zs
bchan=1-23
dchan=24
span=2,0,0,esf,b8zs
bchan=25-47
dchan=48
span=3,0,0,esf,b8zs
bchan=49-71
dchan=72
span=4,0,0,esf,b8zs
bchan=73-95
dchan=96

and here's my chan_dahdi.conf:
[channels]
switchtype=national
pridialplan=unknown
prilocaldialplan=unknown
internationalprefix = 001
nationalprefix =
unknownprefix =
signalling=pri_cpe
usecallerid=yes
usecallingpres=yes
echocancel=no
echocancelwhenbridged=no
group=1
callgroup=1
pickupgroup=1
faxdetect=incoming
context=defaultspan1
channel => 1-23


-- 
Edwin Lam <edwin.lam at officegeneral.com>
Systems Engineer, OfficeWyze, Inc.
Ph: +1 415 439 4988 Fax: +1 415 283 3370
http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0xD6506D20