Shenzhen DBL Technology Limited  

Product Name: VoIP GSM Gateways (8-SIM Card Port) Model NO.: GoIP-8 Imie: Changeable Protocols: SIP LAN: 2 Requency: Quad Band: 850/ 900 / 1800 / 1900 MHz SMS: Support Counterattack Signal: Support Trademark: DBL Transport Package: 38*22*8.5 Specification: 8 port Origin: China HS Code: 851762330 Product Description GoIP GSM GatewaysGoIP GSM Gateway bridges the GSM and the IP networks by enabling voice communications. It is installed on the Mobile SIM Card, you can register the GSM telephone on the VoIP Softswitch. It can be easily combined into arbitrary number of channels of Large Gateway Group. Low price, perfect sound quality and powerful function make GoIP GSM inevitable choice of system Integrators, traffic Business and soft switch Manufacturers.GoIP (1-SIM Card Port)Support dual protocols: ITU-H. 323 V4 and IETF SIP V2GSM module for making GSM callsProvide 1 SIM Card ports for GSM extensionsSupport G. 711 A/μ law, G. 729A/B, G. 723.1 CodecsSupport Multiple dial plans and line huntSupport QoS, NAT transversal and router functionSupport VAD, CNG, ECGoIP-4 (4-SIM Card Port)Support dual protocols: ITU-H. 323 V4 and IETF SIP V2GSM module for making GSM callsSupport single or multiple servers registrationsSupport G. 711 A/μ law, G. 729A/B, G. 723.1 CodecsSupport Multiple dial plans and line huntSupport QoS, NAT transversal and router functionSupport VAD, CNG, ECGoIP-8(8-SIM Card Port)Support dual protocols: ITU-H. 323 V4 and IETF SIP V2GSM module for making GSM callsProvide 8 SIM Card ports for GSM extensionsSupport G. 711 A/μ law, G. 729A/B, G. 723.1 CodecsSupport Multiple dial plans and line huntSupport QoS, NAT transversal and router functionSupport VAD, CNG, ECGoIP GSM Gateway bridges the GSM and the IP networks by enabling voice communications. It is ideal for VoIP to Local termination where a fixed telephone line (PSTN) is not available or for cellphone roaming via the a VoIP network. Significant savings on long distance charges can be realized.Key FeaturesOpen Standard VoIP Protocols (ITU H. 323 V4 and IETF SIP V2)Single or Multiple Server RegistrationsTwo 10/100 Ethernet circuits connect to the LAN and an additional deviceGSM module for making GSM callsSpeech quality ensured by QoS at the Ethernet and IP layers and comprehensive jitter bufferVLAN and QoS supportNAT Transversal and Router functionsVoice prompts, HTTP Web, Auto Provision support for configuration and updatesHighly stable embedded Linux operating system in high performance ARM 9 ProcessorBasic 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 terminalEnhanced FeaturesDynamic selection of codecAdvanced jitter bufferAutomatic traversal of NAT and firewallVLAN / QosRouterEcho cancellation for SpeakerphoneComfort noise generation (CNG)Voice activity detection (VAD)Auto provisioning (requires auto provisioning server)On line firmware upgradeMulti-language support: English and ChineseSupported 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 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. 711 (A/µ Law), G. 729A/B, G. 723.1DTMF: RFC 2833, In-band DTMF, SIP INFOPhysical and EnvironmentalOperating temperature: 10° C to 40° C (50° F to 104° F)Storage temperature: 0° C to 50° C (32° F to 122° F)Weight: 1300 g (1 lb) (Including AC/DC Adapter)Size: 220 mm (W) x 380 mm (L) x 85 mm (H) (Width x Length x HeigthWarranty: One year