Yeastar TG400L 4-Port LTE VoIP GatewayThe Yeastar TG400L 4-Port LTE VoIP Gateway is a powerful multi-channel LTE gateway designed to connect VoIP systems with 4G mobile networks. Featuring four LTE ports, it enables seamless two-way communication between SIP-based IP PBX systems and mobile networks for voice calls and SMS services.Ideal for businesses seeking cost-effective mobile trunking or a reliable backup solution during fixed-line outages, the TG400L supports VoLTE for high-definition voice quality and offers secure, web-based management. It integrates easily with most SIP-compatible PBX systems, making it perfect for SMBs, branch offices, and enterprise deployments.Key Features4 LTE mobile ports for simultaneous callsVoIP to LTE and LTE to VoIP call routingVoLTE HD voice supportSIP v2.0 and IAX2 protocol compatibilitySMS and USSD supportWeb-based configuration and managementCost-effective mobile trunking solutionIdeal failover backup for landline outagesCompatible with most SIP-based IP PBX systemsSecure voice with TLS and SRTP supportTechnical SpecificationsSpecificationDetailsModelTG400LMobile Ports4 LTE channelsNetwork Support4G LTE, 3G UMTS/HSPA , 2G GSM fallbackVoIP ProtocolsSIP v2.0, IAX2Transport & SecurityUDP, TCP, TLS, SRTPVoice CodecsG.711 (alaw/ulaw), G.722, G.726, G.729A, GSM, ADPCM, SpeexEcho CancellationITU-T G.168 LECDTMF ModesRFC2833, SIP INFO, In-bandSMS/USSD SupportYesNetwork FeaturesDHCP, DDNS, Firewall, OpenVPN, VLAN, QoS, NAT, STUNManagement InterfaceWeb-based GUIPower SupplyAC 100–240V / DC 12VOperating Temperature0°C to 40°CForm FactorDesktop deviceYeastar TG200 GSM VoIP GatewayIDS X Series SMS ModuleUpgrade your phone system easily with Yeastar 02 cardHuawei B593 LTE 4G Wifi Router
