Features

l         Support SIP 2.0 (RFC3261) and correlative RFCs

l         Codec:G.711 A/U Law, G.723.1, G.729a/b, G.722,G.722.1, G.726

l         Echo cancellation: Support G.168, and Hands-free can support 96ms, Hand free Speaker Phone

l         Support Voice Gain Setting, VAD, CNG

l         Full duplex hands-free speakerphone

l         NAT transverse: support STUN client

l         SIP support SIP domain, SIP authentication (none, basic, MD5), DNS name of server, Peer to Peer/ IP call

l         SIP support 2 SIP lines. Can connect to SIP1 and SIP2 server at the same time

l         DTMF: Support SIP info, DTMF Relay, RFC2833

l         SIP application: support Call forward/ transfer/ hold/ waiting / 3 way call/

l         Call control features: Flexible dial map, Hotline, Empty calling reject, Black list for reject authenticated call, limit call, No disturb, Caller ID

l         Support Phonebook 500 records

l         Incoming calls / Outgoing calls / Missing calls. Each support 100 records

l         Support conference and MWI

l         10 kind of ring type

Network Features

l         WAN/LAN: Support Bridge Mode

l         Support Full Duplex Handfree

l         Support PPPoE for xDSL

l         Support DHCP Client on WAN

l         QoS with DiffServ

l         Support PoE

l         Support main DNS and secondary DNS server; Support SNTP Client, Firewall

l         Network tools in telnet server: Including ping, route, telnet client

Management

l         Web ,telnet and keypad management

l         Management with different account right

l         Upgrade firmware through POST mode and HTTP, FTP or TFTP.

l         Telnet remote management/Upload/download setting file

l         Safe mode provide reliability; Syslog

l         Support Auto Provisioning (upgrade firmware or configuration file)