An error occurred while saving the commentArne Pluhar commented
Skip the first lines, if your are not interested in our journey:
In the very beginning of Teams, we were trying to setup Teams Rooms. As we didn't want to restrict the device in the meeting room in its functionality that strictly, like it was restricted by the Teams Room-setup, we decided to use the room calendar without hardware, but still to schedule teams meetings.
Start of the outcome: We faced the same issue, that phone numbers were not added to Teams Rooms-events, except the invitee was having an Audio Conferencing license, too. As almost all other cloud providers are handling rooms in a different, better way, I'd really enjoy seeing a feature, where by inviting a Teams Room with appropriate license, the phone numbers for the meetings are showing up, too.