If you have received a webex meeting invite or if you are the host of a meeting where a webex ready meeting room have been added to the invite, then you will be able to join the webex meeting from the meetingroom by pressing the green Join button on the touch panel or use the remote to press the green join button on the display, if the room does not have a touch display.

The green Join button will be visible five minutes before the meeting is scheduled to start and will be visible until the time where the meeting is scheduled to end.

Example of the Join button on the touch display

Here is how simple it works: