Cisco TelePresence Video Communication Server Expressway opens the world outside the firewall to organizations using video communications. Cisco VCS Expressway enables business-to-business communications, empowers remote and home-based workers, and allows service providers to provide video communications to customers. Cisco VCS Expressway provides standards-based and secure firewall traversal for SIP and H.323 devices and enables communication with the outside world regardless of SIP or H.323 protocol.