Trouter (Microsoft Teams routing software for video calls and voice calls) crashes and fails to parse SDPs every day, even from Teams clients. I swear it is the least reliable session border controller we interact with, every 2 weeks a new software version is rolled out and new things break while tickets about bugs we filed with Microsoft continue to go ignored.
Behind the scenes, it uses SIP and SDP for establishing calls - back in the day at $BigCo, we were developing a software suite for debugging SIP infrastructure, and Skype for Business was surprisingly easy to integrate. Shame that Teams switched to a proprietary Microsoft protocol now.