[Asterisk-Users] PRI issues

[Kevin Smith]

Hi everyone,

I have been having some problems lately with our PRI and Asterisk, or 
maybe it is just me. It happens once maybe twice a day, but when some of 
our customers are calling in, the phone just drops on them. I pulled the 
information below from the log from one that happened. I notice why it 
is happening, but I can't seem to figure out a way to stop it from 
happening. I also notice that it is saying I don't have a D channel 
defined. I am not sure why it is saying that either. Below are my 
zapata.conf files.

If anyone has any suggestions/ideas it would be greatly appreciated.

Thanks,
Kevin

/etc/asterisk/zapata.conf
switchtype=national
defaultzone=us
context=default
signalling=pri_cpe
group=1
channel => 1-23
dchannel=24
callerid=asreceived


/etc/zapata.conf
span=1,0,0,esf,b8zs
bchan=1-23
dchan=24



Mar 29 17:08:18 NOTICE[24038] chan_zap.c: PRI got event: HDLC Bad FCS 
(8) on Primary D-channel of span 1
Mar 29 17:08:18 NOTICE[24038] chan_zap.c: PRI got event: HDLC Bad FCS 
(8) on Primary D-channel of span 1
Mar 29 17:08:18 NOTICE[24038] chan_zap.c: PRI got event: HDLC Abort (6) 
on Primary D-channel of span 1
Mar 29 17:08:18 NOTICE[24038] chan_zap.c: PRI got event: HDLC Abort (6) 
on Primary D-channel of span 1
Mar 29 17:08:18 NOTICE[24038] chan_zap.c: PRI got event: HDLC Bad FCS 
(8) on Primary D-channel of span 1
Mar 29 17:08:18 NOTICE[24038] chan_zap.c: PRI got event: HDLC Bad FCS 
(8) on Primary D-channel of span 1
Mar 29 17:08:18 NOTICE[24038] chan_zap.c: PRI got event: HDLC Bad FCS 
(8) on Primary D-channel of span 1
Mar 29 17:08:18 NOTICE[24038] chan_zap.c: PRI got event: HDLC Abort (6) 
on Primary D-channel of span 1
Mar 29 17:08:18 NOTICE[24038] chan_zap.c: PRI got event: HDLC Abort (6) 
on Primary D-channel of span 1
Mar 29 17:08:18 DEBUG[15151] chan_zap.c: Exception on 19, channel 2
Mar 29 17:08:18 DEBUG[15148] chan_zap.c: Exception on 18, channel 1
Mar 29 17:08:18 DEBUG[15148] chan_zap.c: Got event Alarm(4) on channel 1 
(index 0)
Mar 29 17:08:18 NOTICE[24038] chan_zap.c: PRI got event: Alarm (4) on 
Primary D-channel of span 1
Mar 29 17:08:18 WARNING[24038] chan_zap.c: No D-channels available!  
Using Primary channel 24 as D-channel anyway!
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 3: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 3
Mar 29 17:08:18 DEBUG[15151] chan_zap.c: Got event Alarm(4) on channel 2 
(index 0)
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 4: 
Red Alarm
Mar 29 17:08:18 WARNING[15151] chan_zap.c: Detected alarm on channel 2: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 4
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 5: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 5
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 6: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 6
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 7: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 7
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 8: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 8
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 9: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 9
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 10: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 10
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 11: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 11
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 12: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 12
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 13: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 13
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 14: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 14
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 15: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 15
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 16: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 16
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 17: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 17
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 18: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 18
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 19: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 19
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 20: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 20
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 21: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 21
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 22: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 22
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Detected alarm on channel 23: 
Red Alarm
Mar 29 17:08:18 WARNING[24039] chan_zap.c: Unable to disable echo 
cancellation on channel 23