I thought I read somewhere that it may be possible for a user to enter a room with a teams enabled mobile device and a Teams certified meeting room device such as a Polycom Trio and it recognize the user and show them as a meeting participant.
As I work for a financial institution this would be very beneficial from a few use cases
1) The able to determine a user would help enable certain regulatory needs , such as recording auto-enable for a user that is in a particular group for example Market Traders
2) To secure a meeting room so a person that is not suppose to be in a meeting cant just walk into a room itself and click on join from the in room devices
3) Because its an wow experience , being able to walk into a room and the meeting starts based of the mobile client or other factors and bring the screen live/documents that is needed etc and ready for a meeting in seconds rather than 5 mins that it seems to get a meeting started.