Even today I am forced to deploy TCP fallback pretty much everywhere, even with corporations "whitelist" us, mainly because they have many/many PoPs all over th

Even today I am forced to deploy TCP fallback pretty much everywhere, even with corporations "whitelist" us, mainly because they have many/many PoPs all over the world. There is no guarantee their system-wide policies is actually applied at a particular access point/ device for any number of reasons. It is particularly worse in consulting industry, This is usually because their customer actually controls the network/infra for the teams working with them, usually that means a lot of fragmented IT managment. This is from my experience deploying Flash / WebRTC stack video tools in Fortune 500/2000 type orgs in last 8-9 years. One of the main reasons we moved to WebRTC from Flash early on is because the heavy friction for deploying RTMP/RTMPS(E). I can count in one hand how many of them had sensible network polices. You may had a good experience with network policies, many many large organizations still insist on IE11 and restricted networks world around, that is the sad reality .