Function Specification Network Protocol * SIP v1(RFC2543), v2(RFC3261) * IP/TCP/UDP/RTP/RTCP * IP/ICMP/ARP/RARP/SNTP * TFTP Client/DHCP Client/PPPoE Client * NAT/DHCP Server * Telnet/HTTP Server * DNS Client/DDNS/VLAN Voice Quality * VAD/CNG//LEC * Packet Loss Compensation * Adaptive Jitter Buffer Codec * G.711/G.723.1/G.726/G.729A/G.729B DTMF Function * In-Band DTMF * RFC 2833 DTMF * SIP Info Phone Function * Volume Adjustment* Speed dial key * Phone book * Flash IP Assignment * Static IP/ DHCP/PPPoE NAT Traversal * Web Browser QoS * ToS field Firmware Upgrade * TFTP/Console/HTTP Auto-Provisioning * FTP/TFTP/HTTP Dial Plan Other Features * Hotline support * Alarm support * Asterisk Open Source IP PBX Support * IP PBX Support Physical Specification Network Port Dimension: Net Weight/Gross Weight Power Input Operating Temperature Storage Temperature 1 WAN Port, 1 LAN Port 199 mm x 99 mm x 29 mm 150g / 200g 5V DC 1.0A 5 C - 45 C -25 C - 85 C Package Content * Input 100-240V (50/60Hz) Power Supply, Output DC 9V/500mA * Network Cable * CD-ROM with Electronic User Manual