A one-time session will generate an exclusive link for a particular session and the next session will require another link. The instructor simply needs to define the start date and start time to begin a session.
A permanent session can be used for a series of live sessions. The link for the room will remain the same for the designated time frame. The instructor needs to specify the start date, end date, start time, and specific days of the week to be held on.
If “Repeat on” is not selected, then it will become a session that can be used anytime and the host/teacher can use it multiple times a day. The instructor, thus, need not have to send the session link repeatedly to the students as the link will remain the same for upcoming sessions.