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User Manual 13 Specification Voice Compression: G.711/G.729 AB/G.723 Silence Suppression: VAD, CNG Echo Cancellation: G.165/G.168 16 ms Jitter Buffer: Adaptive Jitter buffer Management Gain Control:In/Out +/-6db Packet Time: 40 ms Transport Protocol: RTP, RTCP Call Control Protocol: Proprietary Phonebook: Manual input, Automatic LAN Interface: 5 * Ethernet Ports; 10BASE-T/100BASE-TX Auto-negotiation; RJ-45 Connectors System Console interface: 1 Management: Management Tool: Web Browser, Phone set, System Console, and Telnet IP Address: Static IP / DHCP Firmware Update: Web, FTP Power Power Adaptor, Voltage: 100VAC ~ 240VAC. Frequency: 50/60Hz Power Consumption: 9 W Dimension: 127 mm x 80 mm x 21 mm Working Environment Operating Temperature: 0 to 50℃, Storage Temperature: -10 to 70℃ EMI certification: FCC part 15 Class B.CE Mark PTT Regulation: FCC part 68, NALTE, iD A, JATE Safety: cUL, CCIB, CB DCC NO. 9171004703 62