Mcus table in Skype for Business Server 2015
The Mcus table is a supporting table. Each record stores information about one conferencing service. These can include the IM Conferencing service and the Telephony Conferencing service (which run as processes on front-end servers), and the Web Conferencing service and A/V Conferencing service.
||Unique number identifying this conferencing server.
||Conferencing server type, such as conf:chat (for IMs) or conf:audio-video. See the UriTypes table for more information.