IP-12 VoIP is a kind of voice communication terminal which is based on wide band and independent of PC (personal computer). Voice Features

* Support SIP RFC3261 RFC3262 RFC3265

* Codec：G.711A/u, G.7231 high/low, G.729

* Echo cancellation: Support G.168, and Hands-free can support 96ms

* Full duplex hands-free speakerphone

* Support Voice Gain Setting, Jitter Buffer, VAD, CNG

* NAT transverse：support STUN client * SIP support SIP domain, SIP authentication (none, basic, MD5), DNS name of server, Peer to Peer

* Public SIP support Pubic & Private server. Can connect to ISP and Private SIP server at the same time

* Public SIP support dual public server

* DTMF：Support SIP info, DTMF Relay, RFC2833

* SIP application: support Call forward/transfer/holding/waiting

* Call control features: Flexible dial map, support Hotline, Empty calling No. reject service, Black list for reject authenticated call, No disturb, Caller ID.

* Support conference call and voice record * English, Spanish, Czechoslovak alternative Network Features

* WAN/LAN: Support Bridge and Router model

* Support basic NAT and NAPT

* Support PPPoE for xDSL

* Support DHCP Client on WAN

* Support DHCP Server on LAN

* Support DNS Relay, SNTP Client, Firewall

* Network tools in telnet server: Including ping, trace route, telnet client Maintenance and Management

* Support Boot Monitor

* Can upgrade firmware through boot monitor

* Can config through Web, keypad, Telnet

* Can upgrade firmware and configuration file through HTTP, FTP, TFTP

* Support Syslog