Videoconference systems Polycom, Cisco, Huawei, LG, LifeSize endpoints Cisco Telepresences 500, 1100, 3000, 3010 CUCM Call Manager CME Call Manager Express MCU - Radvision, Cisco MSE Series 8510, Huawei, Codian CTMS Gatekeeper - Cisco TPServer - MSE 8000 Series VCSC/E CUBE / Gateway Protocols SIP H.323 SCCP