Shenzhen DBL Technology Limited  

Product Name: 4 Channels GSM Gateway with 4 SIM Card Model NO.: GoIP-4 Type: Gateway Packing Box Dimension: 35.5*21.5*7 Cm G. W: 0.86kg Carton Dimension: 43.5*37.5*34.5cm 10unit/Carton G. W. C: 9.5kg Power: 12 Vdc 2A (AC/DC Adapter Included) Warranty: One Year Trademark: DBL Transport Package: 36(L)Cm*21(W)Cm*7(H)Cm Specification: 26(L)Cm*16(W)Cm*3(H)Cm Origin: China HS Code: 8517709000 Product Description Product OverviewThe 16 portsGSM Gateway (GoIP16)provides the extension of GoIP1 and supports up to 16 GSM channels. EachGSM channel canbeprogrammed individually to establish the connectivity with IP-PBX, or can bebundledas a single trunk in connection with IP-PBX. It is ideal for VoIP to wireless services where a fixed telephone line (PSTN) is not available or for cellphone roaming via the a VoIP network. The GoIP16 brings mobility, scalability and significant savings on long distance charges.Key featuresProvide 16 cellular channels for IP-PBXSupport open standard SIP Protocols (IETF SIP V2)Support SIP proxy modeMultiple GoIP16 grouping modeTwo 10/100 Ethernet ports for the LAN and an additional deviceGuad band GSM module: support GSM850MHz, 900 MHz, 1800 MHz, 1900MHzSpeech quality ensured by QoS at LAN, IP layers and comprehensive jitter bufferVLAN and QoS supportNAT TransversalVoice prompts, HTTP WebHighly stable embedded Linux operating system in high performance ARM 9 ProcessorEnhancedFeaturesLEDs 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 terminalDynamic selection of codecsAdvanced jitter bufferAutomatic traversal of NAT and firewallVLAN / QosEcho cancellation for SpeakerphoneComfort noise generation (CNG)Voice activity detection (VAD)Auto provisioning (requires auto provisioning server)Firmware upgrade from GUISupported StandardsITU: H.323 V4, H.225, H.235, H.245, H.450RFC 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 model with SDPRFC 3515 - SIP REFER MethodRFC 3842 - A Message Summary and Message Waiting IndicatorRFC 3489 (STUN) - Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators (NATs)RFC 3892 - SIP Referred-By MechanismProprietary Firewall-Pass-Through TechnologyCodec: G.711 (A/µ law), G.729A/B, G.723.1DTMF: RFC 2833, In-band DTMF, SIP INFOWeb-based ManagementPPP over Ethernet (PPPoE)PPP Authentication Protocol (PAP)Internet Control Message Protocol (ICMP)TFTP ClientHyper Text Transfer Protocol (HTTP)Dynamic Host Configuration Protocol (DHCP)Domain Name System (DNS)