Meetme CDR

Is there anyway to get a meetme conference room number that a user has punched when it’s not passed to the meetme application as a parameter? I need to retrieve it so I can set the cdr account code on that channel, but there seems to be no way to do it without getting the room number prior to calling meetme. I would rather just use meetme to handle getting the room number and password since it does that perfectly than wrapping something around it.