oGets IP from DHCP server using DHCP protocol or through ADSL modem using PPPoE protocol, automatically reconnects when PPPoE loses connection.
•Pass through NAT devices:
oCan make outgoing and incoming calls under any NAT device (even under two layer NAT devices) when working with the specific gatekeeper/proxy device.
•Remote software upgrade capability (via ftp):
oFTP protocol provides reliable remote upgrade via Internet.
•Advanced Digital Signal Processing (DSP) technology to ensure superior audio quality:
oHardware System on a Chip solution with built in DSP processor ensures perfect voice quality.
•Supports G.723.1, G.729A/B, G.711
oFollows
•Supports supplementary services, including immediate (unconditional) call forwarding, busy call forwarding, no answer call forwarding and call hold/transferring.
•Provides call history:
oRecords incoming call history, outgoing call history, missed (not accepted) call history, and lets users make a direct call from the call history log.
•Phone Book : 50 entries
•Speed dial : 10 entries
•Supports Silence Suppression, VAD (Voice Activity Detection), CNG (Comfort Noise Generation) :
oSilence suppression can save about half of the network bandwidth needed during normal VoIP conversation.
•Ping function supported :
oPings another device on the Internet from the VOIP 2747 to make sure the Internet connection is ok.
•System status display on the LCD panel :
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