BUILT-IN IPPBXENTERPRISE GRA DE FW VPN ROUTER 8 X 2.5 GB 4 X 10 GIG SFP 16 X GIGEGR GCC6021 UC Networking Convergence Solutions The GCC6020 Series provides an extraordinary all in one solution that merges unified communications and networking solutions into one platform. These state of the art devices combine the functionality of 4 products to provide an all in one solution that includes a VPN router next generation firewall IP PBX and network switch. The Series includes two models GCC6020 and GCC6021. 3 Year Warranty Guaranteed.