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• Orginal DBL GOIP 1 Chip Channel GSM Gateway (IMEI Change,1 SIM Card, SIP & H, VPN PPTP) GSM VOIP Gateway-Promotion Related Products: Note:All our products are origninally manuafactured% new, any pretend products, we promise fullly refund is extremely high quality guaranteed,and we provide lifetime loose tech support,also will test 24 hours to ensure it&;s all useful earlier than shipping This is 2G device,when you place the order,please verify your nation can still use 2G network Application:The classic use of our GOIP/VOIP as follows:PSTN->VOIP,VOIP->PSTN,Telephone is a common cellphone Softswitchis software put in in a computer It appears upon as a server, Goip appears as client The scheme desires GoIP,telephone,softswitch,another cellphone login softswitch by way of traditional Gateway system Then you could possibly PSTN->VOIP and VOIP->PSTN Call Back SummaryGoIP GSM Gateway bridges the GSM facilities and the IP networks It is good for VoIP to GSM amenities where a fixed telephone line (PSTN) isn't obtainable or for mobile phone roaming through the VoIP network GSM Gateway is designed to work in conjunction with key phone methods and IP-PBX to produce GSM communications The extensive compatibility of the GoIP makes it a perfect option to be deployed in multi-vendor open structure VoIP networks GSM Gateway is a good way to supply fast phone carrier deployment the place steady PSTN line will not be available GoIP GSM gateway also offers significant financial savings in utilization (long distance or international), infrastructure and maintenance cost in comparison with traditional PSTN Benefits of GoIPExtensive product compatibility with industry main vendorCost-Savings on cellphone calls between mobiles or to PSTNEasy to install – IP machine with Web based management interfaceCan be managed and monitored remotely over Internet - a superb carrier to supply to prospects by way of formulation integratorsGoIPs would be grouped together to establish GSM gateway clusterTermination between GSM/VoIPSchedule or on-demand SMS Broadcast messages to users(Additional SMS server is required) Key FeaturesOpen Standard VoIP Protocols (ITU H V4 and IETF SIP V2)Single Server RegistrationsSIP peer-to-peer modeSIP proxy modeGSM module(Frequency) 850MHz, 900 MHz, 1800 MHz, 1900MHzAdvanced jitter bufferVLAN and QoS supportNAT TransversalCall forward from GSM to VoIP and VoIP to GSMPassword or Trust list protection for dial in mode and dial outComprehensive dial PlanRetransmit GSM Caller ID to VoIP terminalDynamic collection of codecsEcho cancellation for SpeakerphoneComfort noise generation (CNG)Voice exercise detection (VAD)Firmware improve from GUI Basic FeaturesLEDs for Power, Ready, Status, WAN, PC, GSMCall forward from GSM to VoIP and VoIP to GSMDial in mode or dial out mode onlyDial PlanPassword protection for both GSM dial in or dial outRetransmit GSM Caller ID to VoIP terminal Enhanced FeaturesDynamic selection of codecAdvanced jitter bufferAutomatic traversal of NAT and firewallVLAN / QosRouterEcho cancellation for SpeakerphoneComfort noise era (CNG)Voice activity detection (VAD)Auto provisioning (requires auto provisioning server)On line firmware upgradeMulti-language support: English and Chinese Supported StandardsITU: H V4, H, H, H, H 1889 - RTP/RTCPRFC 2327 SDPRFC 2833 RTP Payload for DTMF Digits, Telephony Tones and Telephony SignalsRFC 2976 SIP INFO MethodRFC 3261 SIPRFC 3264 Offer/Answer mannequin with SDPRFC 3515 SIP REFER MethodRFC 3842 A Message Summary and Message Waiting IndicatorRFC 3489 Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators (NATs)RFC 3891 SIP Replaces HeaderRFC 3892 SIP Referred-By Mechanismdraft-ietf-sipping-cc-transfer-04 Session Initiation Protocol Call Control - TransferCodec: G (A/µ law), G/B, G: RFC 2833, In-band DTMF, SIP INFO Free roamingIn order to advertise our product ,Now we have added some new funcitions in GoIP including the recent funcitions,you can build the call without using the softwhich or platform,just counting on the web makes our calls more handy and easier’s more, it can save many of call fee is the following example: Examplepeer to peer:it is a new operate you can use our voip without platform,what is more,it is free roaming for foreign name simply pay the local callSolution1 Solution2Solution3Solution4package consist of 1 laptop computer goip gateway 1 pc of power delivery 1 personal computer of Ethernet cable

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