[asterisk-users] PRI got event HDLC Abort

[Edwin Lam]

On 11/2/2012 10:06 PM, Liban Abdi wrote:
> is there static on the line??

no. there were customer complains about sound cutting in and out.
however i wasn't noticing and bad sound quality when i was testing it.

> is there timing slips and crc4 errors?

no. the only messages i have are the HDLC abort warning.

> are they increasing throughout the day?

they happen randomly, and quite frequently.

> are you getting timing slips during the day when users are using the phones and
> not off-peak hours?

no timing slips related messages in either Asterisk's logs
or syslog.

> are you getting hdlc abort erros when you hear a static noises??

that i don't know. however there was once it happened
while i was in the middle of a call but i couldn't hear
any sound drop off or any static.

> is the card sharing irq?

no. this the only card that uses IRQ 30
1b:00.0 Network controller: Digium, Inc. Device 1420 (rev 14)
         Subsystem: Device 0005:0000
         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr+ 
Stepping- SERR+ FastB2B- DisINTx-
         Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
         Latency: 64 (8000ns min, 32000ns max), Cache Line Size: 64 bytes
         Interrupt: pin A routed to IRQ 30
         Region 0: Memory at 97a00000 (32-bit, non-prefetchable) [size=32K]
         Kernel driver in use: wct4xxp

> is your system plugged directly into an outlet without ups?

good question. i don't know.

>
> On Fri, Nov 2, 2012 at 8:40 PM, Edwin Lam <edwin.lam at officegeneral.com
> <mailto:edwin.lam at officegeneral.com>> wrote:
>
>     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
>