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Hello we have an * setup using a TE405P with a crossover to a Dialogic PRI card. The machine with the Dialogic card is an automated call generator. The asterisk machine is being used as a test platform to answer the incoming calls play an audio file then record the incoming audio. This set up has been working nicely when the calls were coming in on a SIP channel. However when call come in on

I would say it's almost certainly a cabling issue of some sort. We get the "S-frame while link down" message all the time on our Asterisk clusters due to the way the T1 failover switch works. It's harmless in our case since really the PRI is connected to the other box in the cluster (unless there is a card failure, of course). But for your application, I'm sure you'd