Hello,
We have been running a system based around the quadbri card from www.junghanns.net for around 3 weeks now. For the first two weeks everything was stable and ran well. In the last week a issue has appeared, described below:
Someone attempts to call us, * sees an incoming call (it is anounced on the console e.g. "Accepting call from '' to '781950' on channel 2, span 2") and * says it has picked up the call. However the person calling isn't connected, hears no ringing and gets a tone as if the call has been rejected. This happens on some but not all calls. As * believes the call is connected the channel remains open and the call remains in the system until it is manually cleared.
It doesn't appear to be a service provider issue, they;ve tested the lines and see no problem. The only strange error message in the logs is:
WARNING[15376]: PRI: !! Don't know what to do with M3=7 u-frames
which has started to appear recently bu it occurs once to twice a day where as the failed calls can happen tens of times a day.
We have 2 isdn2e line with 1 hunt number.
We were on bristuff 0.0.2rc20a and have changed to the latest 0.0.2 but the problem still occurs.
Any idea on how to resolve this would be greatly appreciated.
regards,
Julien Levi
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