Lifesize fills out its all-in-one Unity series with two room solution video conferencing systems Nov 14, 2012 eChannel Line | Mark Cox Lifesize, the division of Logitech which makes HD telepresence solutions, and which sells entirely through channel partners, has announced the completion of its all-in-one Unity Series with the final two models in the family, the Lifesize Unity 1000 and Lifesize Unity 2000.