Free Speaker VOIP Phone Support 2 SIP Servers with POE

Features
2 SIP Line + IAX2,
1 WAN,1 LAN POE
Support SIP 2.0 (RFC3261) and correlative RFCs
Codec:G.711 A/U Law, G.723.1, G.729a/b, G.722,G.722.1, G.726
Echo cancellation: Support G.168, and Hands-free can support 96ms, Hand free Speaker Phone
Support Voice Gain Setting, VAD, CNG
Full duplex hands-free speakerphone
NAT transverse: support STUN client
SIP support SIP domain, SIP authentication (none, basic, MD5), DNS name of server, Peer to Peer/ IP call
SIP support 2 SIP lines. Can connect to SIP1 and SIP2 server at the same time
DTMF:Support SIP info, DTMF Relay, RFC2833
SIP application: support Call forward/ transfer/ holding/ waiting / 3 way talking
Call control features: Flexible dial map, Hotline, Empty calling reject, Black list for reject authenticated call, limit call, No disturb, Caller ID
Support Phonebook 500 records
Incoming calls / Outgoing calls / Missing calls. Each support 100 records
Support conference and voice record on SIP server
Support 10 kind of ring type and 1 user ring
Support IAX2
Support MWI
Support SMS
Support Speed Dial
Support Memo
Multilanguage realizes localization
Support 2 SIP servers
Support IAX2
Hands-free can support 96ms
Support DMZ,VPN (L2TP) 5)POE(powered over Ethernet)
Technical Specifications
SIP support 2 SIP lines. Can connect to SIP1 and SIP2 server at the same time
SIP application: support Call forward/ transfer/ holding/ waiting / 3 way talking
Call control features: Flexible dial map, Hotline, Empty calling reject, Black list for reject authenticated call, limit call, No disturb, Caller ID, Support Phonebook 500 records
Incoming calls / Outgoing calls / Missing calls. Each support 100 records
Support conference and voice record on SIP server
Support 10 kind of ring type and 1 user ring
Support MWI,SMS,Speed Dial, Memo, Multilanguage realizes localization
Support SIP 2.0 (RFC3261) and correlative RFCs
Codec:G.711 A/U Law, G.723.1, G.729a/b, G.722,G.722.1, G.726
Echo cancellation: Support G.168, and Hands-free can support 96ms, Hand free Speaker Phone
Support Voice Gain Setting, VAD, CNG
Full duplex hands-free speakerphone
NAT transverse:support STUN client
DTMF:Support SIP info, DTMF Relay, RFC2833
Support DMZ,VPN (L2TP)
POE(Powered over Ehternet)
Accessories
IP Phone
Power supply
Network cable
User manual