callerid.c: Parse previously ignored Caller ID parameters.

InterLinked1 commented 1 month ago

Commit f2f397c1a8cc48913434ebb297f0ff50d96993db previously made it possible to send Caller ID parameters to FXS stations which, prior to that, could not be sent.

This change is complementary in that we now handle receiving all these parameters on FXO lines and provide these up to the dialplan, via chan_dahdi. In particular:

If a redirecting reason is provided, the channel's redirecting reason is set. No redirecting number is set, since there is no parameter for this in the Caller ID protocol, but the reason can be checked to determine if and why a call was forwarded.
If the Call Qualifier parameter is received, the Call Qualifier variable is set.
Some comments have been added to explain why some of the code is the way it is, to assist other people looking at it.

With this change, Asterisk's Caller ID implementation is now reasonably complete for both FXS and FXO operation.

Resolves: #681

InterLinked1 commented 1 month ago

cherry-pick-to: 18 cherry-pick-to: 20 cherry-pick-to: 21

github-actions[bot] commented 3 weeks ago

Successfully merged to branch master and cherry-picked to ["18","20","21"]

asterisk / asterisk

callerid.c: Parse previously ignored Caller ID parameters. #682