It was only a matter of time before Cisco's Umi and TelePresence services got together for some HD video calling synergy, and the company has finally enabled "full interoperability" between the two. Not only that, but the networking giant is also rolling out a free HD calling client called Umi Connect for PC and Mac (think SkypeHD) and a new Umi 720 system that works with slower broadband connections. The 720 will cost $399 upon its market arrival this summer, while the
