CMS (Cisco Meeting Server) is leading Video Conferencing (MCU) solution offering: - secure video meetings (PIN protection, encryption). - integration with Cisco Communications Manager for adhoc video meetings. - scheduled meetings (via TMS) and personal always-on meetings for easy of use and save time from admins.

https://community.cisco.com/t5/collaboration-voice-and-video/cisco-meeting-server-cms-overview-and-useful-info-resources/ta-p/3648134