Specification

VoIP Features

+   Support 5 SIP accounts

+   Codec: G.711A/u, G.7231 high/low, G.729a/b

+   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 DNS name of server, Peer to Peer

+   SIP support Pubic & Private server. Can connect to ISP and Private SIP server at the same

      time

+   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, race 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