I have a web page that initiates a call between 2 pstn numbers. There is a sipx extension that initiates the call to pstn number 1 and transfers it to pstn number 2.
This is working with an unmanaged gateway. When I try to do the same thing with a sip trunk (via internal sbc) it fails already on the first invite from the sipx extension to pstn number 1.
I get "JAVA:ERR:SERVER:UDPMessageChannelThread:00000000:CallControlManager:"Error processing requestINVITE..."
A softphone configured with the same sipx extension can call the pstn number without problem. I tried with another sip trunk (via internal sbc) and it gives the same error.
The sipx extension on the callback page receives SIP/2.0 500 Server Internal Error.
It seems to work with an unmanaged gateway but not with a sip trunk via sbc. I have no idea where else I can look for debugging.
If someone could help me. I can send a snapshot or other log if wanted/needed.
Thanks,
MdM
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