Good question Justin O'Meara! For room remote there is no additional app needed. It is conveniently located as part of the Teams app on your mobile phone. You will be able to access room controls in one of three ways:
1. Go to a calendar invite on your mobile phone and via the join button, leverage the proximity join feature to select the Teams Rooms and bring the Teams Room into the meeting. At this point, you will see a banner at the top of your mobile phone that offers the option to control the room.
2. Join a meeting from the Teams Room device as well as on your mobile phone. On your mobile phone, go to the roster and select the Teams Room and a menu of options will be available, one of which will be the ability to control the room.
3. Join a meeting from the Teams Room device as well as on your mobile phone and on your mobile phone, long press on the video of the Teams Room. A menu of options will come up that will allow you to control the room.