A customer requests a configuration that enables users to easily add a third participant to an existing call. The environment contains only three Cisco TelePresence C40 codecs and one Cisco VCS. To ac

Cisco Multisite is a built-in, licensable MCU feature on the C40 codec that supports hosting multipoint video conferences directly on the endpoint hardware. This satisfies the customer requirement in an environment with only C40s and a VCS, because no external conferencing infrastructure is needed - the endpoint becomes the conference host.

Cisco MultiWay requires an external MCU or TMS-provisioned conference resource and is a VCS-driven escalation mechanism, not a self-contained capability of the C40 endpoint.

Cisco VCS Expressway is a firewall traversal solution for enabling calls across network boundaries and provides no multipoint conferencing capability.

Cisco TMS is a management and scheduling platform and does not itself provide a conferencing bridge capable of hosting a third participant.