FYI that direct calls between users in Microsoft Teams causes the WAN port on the 3150 to hang and not route any traffic through. LAN access still works.
Calls in meetings work fine. I don't know what the packet differences are between direct calls and meetings calls are but something happens wih direct user to user calls that causes the WAN port to freeze. Only fix is to reboot the router and all is fine again.
Support was of no help.
Since it looks like Skype may be moving to Teams just wanted to give ya'll a heads up on this issue.
Maybe it's just me...