IAD04(W:4S) 4 port VOIP gateway include 4 FXS ports gateway,and with 1 WAN and 1 to 4 LAN ports,and 1 WIFI ... ,SNMP Management mode: WEB,Telnet command line,Console for super terminal and NMS Voice processing Technology l CODEC: G.711-a ... JITTER BUFFE Security l Embedded firewall module, packet filter, IP port shielding, anti URL attack Support signaling, media, fax encryption, anti ...