Set Teams Meeting Dial-in number using PowerShell
You can using Microsoft Teams Audio Conferencing licenses to get Dial-In phone numbers for your meetings. The license is needed per user that creates the meeting invites. The phone number in the meeting invite is based on the UsageLocation attribute of the user - once when the user gets enabled for Audio Conferencing. So even if you fix a wrong UsageLocation, the user will still have the old dial-in number assigned....