I am looking for some help in finding a call flow process steps or diagram.
A phone goes off hook and contacts the Publisher via XYZ protocol
The Publisher then does this and that
A number is pressed on the phone and this happens
I hope that makes since. I'm just looking for detailed step-by-step lists or diagrams about how the phones, servers, etc. work together in different scenarios. I've looked around for awhile have not found anything yet.