• Supports SIP 2.0, TCP/UDP/IP, RTP/RTCP, HTTP, ICMP, ARP/RARP, DNS, DHCP (both client and server), NTP, PPPoE, TFTP protocols
• Built-in router, NAT and Gateway
• Powreful digital signal processing (DSP) to ensure superb audio quality; advanced adaptive jitter control and packet loss concealment technology
• Ultra compact and lightweight design
• Supports various vocoders including G.711 A-/U law, G.723.1, G.729A/B, G.728, G.726, iLBC
• Supports silence suppression and VAD, AGC, and echo cancellation (G.168)
• Supports standard encryption and authentication (DIGEST using MD5 and MD5-sess)
• Supports layer-2 (802.1Q VLAN, 802.1p) and layer-3 (DiffServ, ToS) QoS
• Supports automated NAT traversal without manual manipulation of firewall/NAT
• Supports remote automated provisioning and software upgrade even through firewall/NAT to enable 'zero configuration' and 'plug-and-dial' for end users
• Supports device configuration via built-in IVR, Web browser or central configuration file
• Support DNS SRV Look Up

• All-In-1 VoIP IAD
• Full Feature Voice/Fax-over-IP
• Built-in Router, NAT and Gateway
• Telephone/PSTN/LAN/WAN Ports
• Ultra-compact and lightweight
• Highly affordable and effective IP solution