FV8010 is a smart voip gateway with 1WAN, 1LAN, 1FXS, 1 Lifeline. Based on Infineon chipset, it will provide you with very clear voice, of course, it also has the basic functionality as a voip gateway. Voice Features: Support SIP RFC3261 RFC3262 RFC3265 Codec: G. 711A/u, G. 729, G. 729A/B Echo cancellation: Support G. 168 Support Voice Gain Setting, Jitter Buffer, VAD, CNG, NAT transverse: Support STUN client, VPN SIP support SIP domain, SIP authentication (none, basic, MD5), DNS name of server, Peer to Peer SIP support Pubic/Private server. Can connect to Public server and Private SIP server at the same time Support dual public server, Redundancy server support. DTMF: Support SIP info, DTMF Relay, RFC2833 SIP application: Support Call forward/transfer/holding/waiting Call features: Flexible dial map / Hotline Empty calling No. Reject service Black list for reject authenticated call Limit list for ban outgoing call No disturb /Caller ID IP address Peer to Peer call Support 3-way conference Answer PSTN Call: Holding VoIP call and answer the PSTN call. Make PSTN call by dial peer. Life Line support: Switch to PSTN call automatically when Internet failed or Power is off Reverse polarity Network Features Support PPPoE for xDSL. Support DHCP Client on WAN Support SNTP Client, 802.1p/q, diffserv Network tools in telnet server: Including ping, race route, telnet client