T428-A Category Audio, GHB Intellect Experts, Image / Video, Processors Core Expertise • Intel • Picturetel • Teraglobal • Polycom • Chipwrights • Zeevee • Ambric • Logitech/Lifesize Communications Previous Companies Intel, Picturetel, Teraglobal, Polycom, Chipwrights, Zeevee, Ambric, Logitech/Lifesize Communications