CCA 2.0 adds support for meetme conferencing. For CCA 1.9.1 and below, Meetme conferencing is supported outside of CCA using CLI
Meet-Me can only be initiated by an internal IP Phone user. External attendees can join the conference if there are DID numbers mapped to the meet me conference extension or they can be transferred to a Meet-Me conference extension. You can have multiple meet me conferences per UC500 and each conference is uniquely identified by the meet me conference number.