Krisz's Microsoft Teams adventure

 Overview Last week, I started a series of article about ICE protocol and its implementation for Microsoft Teams. Today, I'm going to write a bit more about ICE builds up the candidate pairs and how ICE test those connectivities.  Here you can find part 1. ICE article Part 1 Build candidate pairs Before we can build a candidate pairs we also have to run a process called Determining Role. For each session, each agent takes on a role. There are two roles; controlling and controlled. The controlling agent is responsible for the choice of the final candidate pairs used for the communications. This means nominating the candidate pairs that can be used by ICE for each media stream, and for generating the updated offer based on ICE's selection, when needed. The agent that generated the offer which started the ICE processing MUST take the controlling role, and the other MUST take the controlled role. Both agents will form check lists, run the ICE state machines, and generate connectivi