Your question would be better off in the TelePresence section of the forums, where these devices are more actively discussed and people can help get you the answers you need. You can move your question to the correct section by editing it and changing the categories at the bottom.
To try and answer your question.
There is some information in the TMS Admin Guide, starting on pg 302. You can purge old data from the database after so many days. There are default values for the amount of days to keep each type of data, but can be adjusted to fit your deployment. Purging old database data can be adjusted in TMS under Administrative Tools > TMS Server Maintenance.