Thanks for your reply.I want to stop users from being able to enter a room they have entered before. So having a pool of rooms and recycling them would not work. I may have re-used a room for a new meeting with new participants.At the moment, when a new meeting is required, I am creating a new room with a random name and joining the new participants to that. Old expired rooms are deleted once in a while.Is there a different way of doing this with a pool of rooms? Once I've given out an authentic...