H.323/SIP & Web Conferencing
Video conferencing has come so far in the past few years. If you follow the industry you know web conferencing software provides like: BlueJeans, Spontania, Vidyo and Zoom.US are providing "H.323 & SIP" integration with their cloud based services. In essence, this is connecting the traditional video conferencing systems from Polycom and Cisco to the cloud without the need to purchase expensive hardware. Without going into too much detail H.323 was the original standard protocol and SIP is the new and improved protocol (more info here).