What is SIP (Session Initiation Protocol) | SIP Basics | SIP Call Setup | Lesson#3

This Video is all about more SIP calls and analysis, Re-invites and cancelling requests. Please Like and Share this video if you learnt anything. and Subscribe it if you wish to see contents related to this. Please find below links for my other videos : CUCM and CUC - https://youtube.com/playlist?list=PLo4vaqmPtSBZ_MVfwJLwCePAlOi3X5WAO SIP Protocol - https://youtube.com/playlist?list=PLo4vaqmPtSBZ4x9-FXjHh3qELtqDwrScC