In Stir-Skaken environment, according RFC8224, Asterisk may get some provisional responses that include a Reason, conveying a message from the remote end.
It seems, Asterisk doesn't provide yet, any way to read this Reason.
Please provide a way to access this Reason header, at least for logging.
Improvement Description
Access to RFC8224 Reason header
In Stir-Skaken environment, according RFC8224, Asterisk may get some provisional responses that include a Reason, conveying a message from the remote end. It seems, Asterisk doesn't provide yet, any way to read this Reason. Please provide a way to access this Reason header, at least for logging.