Android lets third-party apps replace the entire calling process, so depending on the setup there is no OS component that even knows what number you are trying

Android lets third-party apps replace the entire calling process, so depending on the setup there is no OS component that even knows what number you are trying to dial before the dialer actually tells the OS about it. Not sure if Teams does that, if not I guess it would be possible, although I'm not sure if there aren't cases where suddenly a different (=an OS component) app than the user expects taking over also would be bad, e.g. if someone used a special dialer for accessibility purposes. Maybe this should be behind special review and testing, at least this specific bug here seems like it'd have been easy to catch if emergency calling behavior was tested.