2 SIP Lines + IAX2 line IP Phone SMS Support VLAN,VPN (L2TP) ... ring Support IAX2 Support MWI Support SMS Support Speed Dial Support Memo Multilanguage realizes localization Basic Features ... DTMF:Support SIP info, DTMF Relay, RFC2833 Network Features WAN/LAN: Support Route and Bridge model ... DNS server Support DNS Relay, SNTP Client, Firewall Network tools in telnet server: Including ping, trace route, ...