Hi everyone,

I was troubleshooting a DDR Backup with ISDN line, here is what happened.
Location 1 was setup to initiate the call, Location 2 to accept it . (I went
trough the config n+1 times).
The connection was never established. I set up the syslog server and
debugging of Q931.
Here is the excerpt out of the syslog.




DISCONNECT pd = 8  callref = 0xC9
Cause i = 0x81D8 - Incompatible destination
 Signal i = 0x03 - Network congestion tone on


I put 1 in front of the dial string xxx-xxx-xxxx, and it changed to the
following.

DISCONNECT pd = 8  callref = 0xF4
Cause i = 0x82A2 - No channel available
Signal i = 0x03 - Network congestion tone on



DISCONNECT pd = 8  callref = 0xA2
Cause i = 0x80C1 - Bearer capability not implemented
 Signal i = 0x03 - Network congestion tone on


Than I reversed the configuration-Location 2 calling Location 1 - It was
working just the way it supposed to.

I am not an ISDN specialist,so can someone tell me, what my problem with the
first setup was?

Many Thanks,
Michael




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