1. Support H323v4 and SIP RFC3261 synchronously
2. Codec: G. 711a / u, G. 7231 high / low, G. 729
3. Echo cancellation: Support G. 168, and Hands-free can support 96ms
4. Support Voice Gain Setting, Jitter Buffer, VAD, CNG, H323 support dual GK, call forward, and Peer to Peer
5. Nat transverse: Support STUN client, Citron, AVS
SIP support SIP domain, SIP authentication (none, basic, MD5) , DNS name of server, Peer to Peer
6. Sip support Pubic & Private server. Can connect to ISP and Private SIP server at the same time
7. Sip support dual public server
8. Dtmf: Support SIP info, DTMF Relay, RFC2833
9. Sip application: Support Call forward / transfer / holding / waiting
10. Call control features: Flexible dial map, support Hotline, Empty calling No. Reject service, Black list for reject authenticated call, No disturb, Caller ID.
11. Support conference call and voice record
Networks features
1. WAN / LAN: Support Bridge and Router model
2. Support basic NAT and NAPT
3. Support PPPoE for xDSL
4. Support DHCP Client on WAN
5. Support DHCP Server on LAN
6. Support DNS Relay, SNTP Client, Firewall
7. Network tools in telnet server: Including ping, race route, telnet client
Maintenance and Management
1. Support Boot Monitor
2. Can upgrade firmware through boot monitor
3. Can config through Web, keypad, Telnet
4. Can upgrade firmware and configuration file through HTTP, FTP, TFTP
5. Support Syslog
Please contact us for more details

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