... small family network, etc.FeaturesCall protocol: SIP (IMS compatible), according to RFC2543 and RFC3261, seamless compatible with all popular call agent ... /half duplex, VLAN tag, IEEE802.3x, according to IEEE802.3, 802.3u, 802.3x, connect to PC, LAN switch, router, IP set-box ... , etcPOTS1*FXS, RJ11 connector, connect to phone, FAX, POS machine ...