Hi there,
I was just wondering if there had been any changes to the way conference calling works with Teams recently?
Our organisation has been deploying HP Elite Slice G2 systems running Teams Rooms, each assigned a Conferencing license. Previously, if we scheduled a Teams meeting as a standard user (no conferencing license) and included our Teams Rooms devices as participants, once we joined the meeting from these devices we could conference in a participant by entering their phone number under Add Participants. This no longer appears to work, and the ability to add phone participants now only works if the meeting is organised from one of the accounts with a Conferencing license (if the meeting is scheduled by a standard user and you select Add Participants from a conferencing-enabled Teams Rooms device, it will not detect the phone number you've entered as a valid entry or let you try to call it).
The accounts we are using on our Teams Rooms devices are each allocated a Meeting Room license (with conferencing), and a Domestic Calling Plan.