I have a Sangoma Vega50 connected to 2 ISDN lines, so 4 concurrent total calls.
We are using it with FreePBX.
Both inbound and outbound calls works good, but we can use only one channel per BRI. For example:
- I make an inbound call to the BRI1 number, IVR answers
- I make an inbound call to the BRI2 number, IVR answers
- I try to make an outbound call to any external number, I get congestion
I enabled debug on Vega50 (I am attaching the entire log during the 3 concurrent calls), and the third call is getting “SIP/2.0 500 No Channel Available” error. So it seems that only one channel is working on each BRI.
Could you help me please?
Thank you very much.