The meeting room 9791 is configured as a test meeting room.
You can join this room by calling
Skype for Business: firstname.lastname@example.org
Using this call you can test your connection to our meeting server, your video and audio.
You will get some instructions and your video and audio will be sent back to you with a delay of 2 seconds
so that you can hear yourself. After about 20 seconds the connection will automatically be terminated.