... connection· Provides high-quality, clear-sounding voice, using advanced voice Quality-of-Service (QoS) capabilities and the industry ... IP PBX environments. This easy-to-use solution delivers advanced features to better connect employees and serve customers, ... VPN passthrough, SNTP support, Quality of Service (QoS), DHCP server, port forwarding, IPv4 support, DHCP client Compliant Standards IEEE ...