JR-840 IP phone is an internet based voice network phone terminal. PHONE series IP phone adopts multiple voice control protocols and voice compression coding methods to directly convert analog voice into IP packet for internet transport, thus effectively using the existing bandwidth to provide PSTN quality voice service.
Support four SIP lines and Power over Ethernet.
Auto upgrade firmware and configuration file through HTTP, FTP, TFTP.
Support Call forward / transfer / holding / waiting.
Support conference call and voice record.
Support VPN and VLAN.
Built in router and bridge mode.
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iplinkadam
Joined: 10 May 2008 Posts: 50 Location: East,Floor1, periods 1,Xintianxia Industrial Park, Banxuegang Industrial Area,Longgang District, 
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