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Features
1.The common PSTN phone 2.The VoIP phone, supports SIP (RFC3261) protocol 3.Standard SIP call forwarding 4.Call transfer from VoIP to PSTN 5.Call transfer from PSTN to VoIP 6.Audio Codec supports: G.729, G.711, G.723, GSM 7.Supports AEC 8.Automatic detect/re-generate local PSTN busy-tone and DTMF 9.Both PSTN and VoIP caller ID detection 10.PSTN cable connect state detection 11.Supports connecting Internet devices: LAN/ADSL/broadband router 12.NAT traversal 13.Supports time/DNS/DHCP server 14.Upgrade firmware via web browser 15.Customize ring 16.Configuration by web browser or keypad 17.4 groups of stored settings 18.entries of call log for missed calls, answered calls and dialed calls
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