I have a webhook setup on my Twilio number to execute a C# Controller/Action when a new call comes into my number. I'm returning TwiML to Twilio without any problems. Now I need to be notified when a call moves from a ringing status to an in-progress status. I'm attempting to use a webhook in the "CALL STATUS CHANGES" field in Twilio but this seems to only fire when the call is completed:
How can I configure a webhook on an incoming call to be notified when the call moves from ringing to in-progress?
Edit Added Image showing the request sent to my webserver clearly passes a Call Status parameter with value of "ringing". Why wouldn't I receive a notification when this changes to in-progress?