Sell High Tech VOIP Phone

Support protocol
ITU-TH 323 / MGCP / SIP
Support communication protocol
TCP / IP PPPoE DHCP RTP / RTCP
Add Megaco / H 248 protocol according
To users requirements
Compressing Algorithm Support
ITU-TG 711A/U G.723(5. 3K/6. 3K )
G729 voice encode algorithm
Support VAD
( Voice activity detection )
Support CON
( Comfortable noise generation )
Generate and measure DTMF
Self Adaptive network shakes / delays
Echo Suppression
G.165 G.168 32ons
Software Performance
Log-in up to gate keeper with E.164 Number or H3231D alias
Auto Seeking gate Keeper
Multistage certified log-in ways
Use E.164 Number or H.323ID to call
Support supplemental services of call maintenance or transfer
Speed Dial
Directly call through voice network keeper
Automatically assign IP address, sub network code, network keeper IP address through DHCP
TFTP remote upgrading
Pierce through firewall
Management
By keys or network interface or standard Telnet program to setup
Power Supply
Input 100-236V, Output 9V DC, 500mA Power 0. 5W