[Asterisk-Users] Channel Restart - problem with Asterisk spliced between Arcor E1-PRI and Ericsson BP250

[Frank Sautter]

hi,

well, most of the things work right now due to the help of peter 
svensson, but after heavy use of our ericsson BP250 today several 
problems appeared.
i split into several mails as they are seperate problems.

* from time to time (sometime within a few minutes sometime after hours) 
a complete PRI line or several PRI lines are kind of resetting (none of 
my colleagues reported a call interruption though).
could this be a problem of the length (around 4kilometres) of the line 
between the telco switch and the NT providing the E1-PRI? The PRI line 
itself is only 3 metres long.
is this the line build-out parameter in /etc/zaptel.conf?
or is this something with timing of the span?

my current settings are:

# The line build-out (or LBO) is an integer, from the following table:
# 0: 0 db (CSU) / 0-133 feet (DSX-1)
# 1: 133-266 feet (DSX-1)
# 2: 266-399 feet (DSX-1)
# 3: 399-533 feet (DSX-1)
# 4: 533-655 feet (DSX-1)
# 5: -7.5db (CSU)
# 6: -15db (CSU)
# 7: -22.5db (CSU)
# TE405P/TE410P quad E1
span=2,1,0,ccs,hdb3,crc4
bchan=5-19,21-35
dchan=20
span=3,0,0,ccs,hdb3,crc4
bchan=36-50,52-66
dchan=51
span=4,2,0,ccs,hdb3,crc4
bchan=67-81,83-97
dchan=82
span=5,0,0,ccs,hdb3,crc4
bchan=98-112,114-128
dchan=113


this is a excerpt from /var/log/asterisk/full
  -- B-channel 0/1 successfully restarted on span 2
  -- B-channel 0/3 successfully restarted on span 2
  -- B-channel 0/5 successfully restarted on span 2
  -- B-channel 0/6 successfully restarted on span 2
  -- B-channel 0/7 successfully restarted on span 2
  -- B-channel 0/8 successfully restarted on span 2
  -- B-channel 0/9 successfully restarted on span 2
  -- B-channel 0/10 successfully restarted on span 2
  -- B-channel 0/11 successfully restarted on span 2
  -- B-channel 0/12 successfully restarted on span 2
  -- B-channel 0/13 successfully restarted on span 2
  -- B-channel 0/14 successfully restarted on span 2
  -- B-channel 0/17 successfully restarted on span 2
  -- B-channel 0/18 successfully restarted on span 2
  -- B-channel 0/19 successfully restarted on span 2
  -- B-channel 0/20 successfully restarted on span 2
  -- B-channel 0/21 successfully restarted on span 2
  -- B-channel 0/22 successfully restarted on span 2
  -- B-channel 0/23 successfully restarted on span 2
  -- B-channel 0/24 successfully restarted on span 2
  -- B-channel 0/25 successfully restarted on span 2
  -- B-channel 0/26 successfully restarted on span 2
  -- B-channel 0/27 successfully restarted on span 2
  -- B-channel 0/28 successfully restarted on span 2
  -- B-channel 0/29 successfully restarted on span 2
  -- B-channel 0/30 successfully restarted on span 2
  -- B-channel 0/31 successfully restarted on span 2


regards
  frank sautter