IP Phone

DBuilt-in Modem funtion DFollowing H.323 version 4 standard(EMT-22H) or RFC-3261SIP standard(EMT-22S) DSupport Low Bit Rate codecs. DSupport RTP/RTCP, HTTP, ICMP, ARP, DNS, @DNS, DHCP, NTP/SNTP @, FTP,STUN, PPPoE protocols. DPassing through NAT devices DRemote software upgrade capability.(via ftp) DAdvanced Digital Signal Processing (DSP) technology to ensure superior @audio quality DDynamic IP support( DHCP and PPPoE) DProvide call history

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VoIP Gateway
	DFollowing H.323 version 4 standard(EMG-202H) or RFC-3261SIPstandard(EMG-202S) DSupport Low Bit Rate codecs. DSupport TCP/UDP/IP, RTP/RTCP, HTTP, ICMP, ARP, DNS, DHCP, NTP/SNTP, FTP, @PPPoE proto

IP Phone
	DFollowing H.323 version 4 standard(ET-747H) or RFC-3261SIP standard(ET-747S) DSupport Low Bit Rate codecs DPassing through NAT devices DProvide call history DAdvanced Digital Signal Processing

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