Free VoIP calls are available with KW5261, through a simple connection between the FXS port and any ordinary analog phones, and at the same time, your seamless games and video streaming is not at all interrupted or disturbed, thanks to 4 fast Ethernet ports and 300Mbps Wi-Fi. KW5261 comes with an easy-to-use GUI, to optimize every sophisticated feature of this device: 1 minute set-up, USB2.0 sharing, remote management, VPN pass-through, IPv6 support, multiple and wireless SSID.