Video conferencing equipment vendor Polycom has a new CEO: former Cisco Systems and Tandberg executive Andrew Miller was named to the post May 10.

Miller replaces Robert Hagerty, who is resigning as CEO and board chairman and is leaving his position on the board. Miller’s appointment is effective immediately, and Hagerty will stay around a while as an adviser to help with the transition for both Miller and David DeWalt, who will become chairman of the board.

Click here to read Andrew Miller’s plans to beat Cisco/Tandberg

Miller has been with Polycom since 2009, when he took over as vice president of global field operations. Prior to that, he spent 11 years at Cisco as a sales, marketing and services executive, and served as CEO of Tandberg.