[Asterisk-Users] PRI events

[Craig Guy]

Hi,

I had my PRI dropout this afternoon after logging the errors below - Can't
seem to find much info on what it might be or what caused it.  Whilst
waiting for the telco tech to call I took the server down and restarted it
and it all came back good,but that may just have been coincidence so I still
don't really know if it is my end or theirs.  Anyone have any ideas or
places I could go to find out what it means?

Contents of zaptel.conf are:
span=1,1,0,ccs,hdb3,crc4
bchan=1-10
unused=11-15,17-31
dchan=16

Contents of /var/log/asterisk/messages:
Oct 26 14:39:38 NOTICE[213005]: PRI got event: 4 on Primary D-channel of
span 1
Oct 26 14:39:38 WARNING[213005]: No D-channels available!  Using Primary on
channel anyway 16!
Oct 26 14:39:38 WARNING[229390]: Detected alarm on channel 1: Red Alarm
Oct 26 14:39:38 WARNING[229390]: Unable to disable echo cancellation on
channel 1
- to channel 10
...
Oct 26 14:39:43 NOTICE[213005]: PRI got event: 5 on Primary D-channel of
span 1
Oct 26 14:39:43 WARNING[213005]: No D-channels available!  Using Primary on
channel anyway 16!
Oct 26 14:39:43 NOTICE[229390]: Alarm cleared on channel 1
- to channel 10
...
Oct 26 14:43:03 WARNING[4964373]: PRI: Short write: -1/15 (Unknown error
500)
Oct 26 14:43:03 WARNING[4964373]: Detected alarm on channel 1: Red Alarm
Oct 26 14:43:03 WARNING[229390]: Detected alarm on channel 2: Red Alarm
Oct 26 14:43:03 WARNING[229390]: Unable to disable echo cancellation on
channel 2
 - to channel 10
...
Oct 26 14:43:03 NOTICE[213005]: PRI got event: 4 on Primary D-channel of
span 1
Oct 26 14:43:03 WARNING[213005]: No D-channels available!  Using Primary on
channel anyway 16!
Oct 26 14:43:06 WARNING[213005]: No D-channels available!  Using Primary on
channel anyway 16!