according to every MQE switching document I have read for the past 15+ years, the call quality would suffer without the appropriate QoS commands on the switchport. I could have missed something that is newly released but im pretty sure these commands need to be there.
This bug and its release notes are stupid and disheartening at the same time. there should be at least a workaround mentioned so that one can run QoS on all access ports conveniently.
