Sometimes is very useful to just generate a call flow and copy and paste it into a document or an email. A friend of mine created one that now is not available but when it was I used it a lot for quick call flow explanations, analysis and designs. Since now is not available, I decided to create my own, it has not been fully tested so please feel free to provide any feedback, for that purpose, please use my tech blog.

Please enter the rows as follows:
node1,node2,msgRequest
node2,node1,msgResponse
node1,node2,msgRequest
node2,node1,msgResponse