VoIP Key Features:
? Large port access gateway 32 FXS
? Standard SIP and MGCP (optional) protocols
? Standard G.723.1,G.729A/B, PCM A/U code
? Caller ID, DND standard voice service
? Anonymous call, Direct IP Call and Busy tone
? Fax over IP and Three –way conferences

Main features:
? Support Call forwarding, Call hold, Call waiting, Call display
? Fax over IP,
? Three way conference
? Support PPPoE client, ensure voice service quality , remote management, maintenance.

IP Specifications:
? PSTN Interface: 32 FXS
? Network Interface: WAN, 10/100M Base-Tx, RJ-45
? SIP: RFC3261 - Session Initiation Protocol
? Voice over Packet Capabilities: VAD, CNG, DJB and PLC
? Voice Codec: G.723.1, G.729A/B and PCM A/U
? Fax standard: T.38/pass through baud rate:1.44kbps
? IP Transport: TCP/UDP, ARP/RARP, NTP, DNS, TFTP, HTTP, TELNET, ICMP , STUN and RFC3407
? Others: PPPoE dial-up, VLAN and SNMP
? Firmware Update: WEB
? Monitoring tools: Configuration & Monitoring via WEB and Telnet
? Backup & upload: Update & backup via http
? System log: Debug level: DEBUG, NOTICE, WARNING and ERROR

Physical:
Power: 110~240VAC, 50~60HZ, 0.5A
Environmental: Operational: 32～104F / 0～40°C
Storage: -4～176F /-20～80°C
Humidity: 10%-90%, no-condensing
Weight: 3.5kg