Progress Ind i = 0x8A81 - Call not end-to-end ISDN, may have
in-band info, - and then no inband info is coming, the trace stops)
When caller hangs up, a disconnect is sent (no connect is sent before).
I have played with every progress_ind paramter as well as voice call commands
voice call send-alert
voice call convert-discpi-to-prog
voice call carrier capacity active
voice rtp send-recv
with no success. Looking for an issue about ring back tone I don't have, which is a classic issue, it came to my mind that even if I had no ring back tone it was not my gateway responsability to make the caller party ring, which actually does not. Seems to be a provider issue. Any idea or suggestion ?
It looks like the ISDN is not configured to allow data calls. If it is not configured for data calls, all calls (including data calls) are "clipped" to 56k. This is fine for voice calls, but for data calls it will garble the data packets.
Understanding debug isdn q931 Disconnect Cause Codes:
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