System Feature Highlights
1. Built-in security firewall, safe and anti-theft.
2. Support 20 users & 10 concurrent calls.
3. Support 10 parties conference call.
4. Support call recording.
5. Can optional support 2 FXO ports(Optional).
6. Perfectly compatible with all kinds of IP phones.
20 users, 10 concurrent, 128Mb Onboard RAM, 512Mb Onboard Flash.
T.30T.38 Fax to Email
Call Transfer, Call Forwarding, Call Waiting, Call Back, Call Routing, Caller ID, Do Not Disturb, DISA, Conferencing, Queuing, Multicast/One Touch Intercom, Voice Messaging, Voice Messaging to Email, Intelligent Voice Response (IVR), Call Logging, Blacklisting, Music-on-Hold, Customizable Work Hours, Auto Deployment, Call Recording, Ringing Groups.
Network protocols: UDP,TCP,TFTP,HTTP,SSH,RTP,SRTP,ARP,NTP
NAT conversion: static NAT,STUNHTTP / HTTPS web server
MD5 Digest Authentication, Static Routing, OpenVPN, Virtual LAN (VLAN), QoS/ToS, Dynamic Domain Names (DDNS), Firewalls




Protocol: SIP(RFC3261),IAX2
Transport Protocol: UDP,TCP,TLS,SRTP
DTMF Mode: RFC2833,SIP INFO,In-band
Voice Coding: G.711 (alaw/ulaw),G.722,G.726,G.726aal2,G.729A,GSM. ADPCM,Speex,ilbc,H263,H264
Echo elimination:ITU-T G.168 LEC.
Can optional support 2 FXO ports(Optional).
Single/Dual 10/100Mbps RJ45 Ethernet ports
Peripheral Ports: USB2 FXO ports,or 2 FXS ports,or 1 GSM ports
Peripheral Ports: USB
LED indicators:POWER,Run,Network,PSTN
Reset button
Web-based Configuration/Configuration Backup/Restore/Upgrade Firmware via Upload/TFTP/Modify Web Login Password/Blacklist/Network Packet Capture/IVR Customization/Text to Wav File/Call Record(CDR)/System Log/SMTP/Restore Factory, Reboot/Ping
