VoIP/VoIPGateway/VoIPAdapterRoHS!G-04VoIP/SIPGateway(SinglePort+PSTN)-1LANPort-1WANPort-1PSTN(Passthrough)Port-1FXSPortG-04BVoIP/SIPGateway(DualPorts)-1LANPort-1WANPort-2FXSPortsG-04CVoIP/SIPGateway(SinglePort+FXO)-1LANPort-1WANPort-1FXOPortMainSellingPoints•SupportSIP(RFC2543、RFC3261)•5LEDshowingstatus(LAN,WAN,PSTN,VOIP,SIP)•ConfigurethroughbrowserslikeIE,orthroughphone'skeypad•SupportPPPoE•NATfreindly,SupportSTUNandRPNP•GetIPaddressthroughVoiceIVR•SupportQuickdialandCallForwarding•SupportVolumeControl,Redial,Flash•SupportOut-bandDTMF•SupportDHCPandStaticIPassignment•SupportT.38Fax•StylishandCompactDesign•Support3-wayConferencing•SupportCallWaiting,andCallForwarding•SupportFirmwareUpgradethroughnetworkFeaturesNetworkProtocol*SIPv1(RFC2543),v2(RFC3261)*IP/TCP/UDP/RTP/RTCP*IP/ICMP/ARP/RARP/SNTP*TFTPClient/DHCPClient/PPPoEClient*NAT/DHCPServer*Telnet/HTTPServer*DNSClient/DDNS/VLANVoiceQuality*VAD/CNG//LEC*PacketLossCompensation*AdaptiveJitterBufferCodec*G.711/G.723.1/G.726/G.729A/G.729BDTMFFunction*In-BandDTMF*RFC2833DTMF*SIPInfoPhoneFunction*VolumeAdjustment*Speeddialkey*Phonebook*FlashIPAssignment*StaticIP/DHCP/PPPoENATTr***ersalQoS*WebBrowser*ToSfieldFirmwareUpgrade*TFTP/C***ole/HTTPPriceTerms︰FOBSHENZHENPaymentTerms︰Cash/TTPacking︰GIFTBOXLeadTime︰30daysStanda***Certificate︰CE/FCC/RoHS)