Polycom Group Series and Centro Multipoint License. 6-way on Group 500, Group 550, and Centro. 8-w

ACME Active Key AddPac Advantech Ariesys ATCOM AudioCodes AVAYA Axiomtek Axtel BlueParrott Broadrack Cervoz Chinfa Cincoze Cisco Systems Cleankeys Commeng Crestron D-Link Dell Durabook ETU-Link Extreme Networks Front Man GALMAR Getac Gohigh Grafos Steel Grandstream Huahuan HW group ICOP ICP DAS IEI Technology InduKey Jabra key technology Konftel l-card LinkSys Mairdi Mean well MOXA Inc. Nexcom Optech Panasonic PLANET Plantronics Poly Polycom Raritan Sennheiser SNOM Weintek Winmate ZandZ