Samudra E. Haque wrote:
hello, using Asterisk, is there any clever way to provide answer supervision based upon the received audio only from the FXO interface (from a public PSTN switch that does not have battery reversal, or CPC).
In zapata.conf use either
busydetecgt=yes busycount=6
(it will take about 10 seconds to indetify the hangup or busy)
If you're lucky, you can try the experimental
callprogress=yes
That is DISCONNECT supervision, not ANSWER supervision. Asterisk has no support for answer supervision using only audio. If you want that get a PRI.
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