Yeastar TG400 4 Ports GSM VoIP GatewayThe Yeastar TG400 connects GSM to VoIP networks to provide two-way communication: GSM to VoIP and VoIP to GSM. It allows you to connect most IP-based telephone systems including Yeastar IP Phone Systems, and soft switches to a GSM which can provide a sophisticated fallback solution when landlines go down, or be used to increase call traffic capacity by providing additional dial-tone.Specification of Yeastar TG400 4 Ports GSM VoIP GatewayInterfaceTG400: 4 GSMTG100, TG200, TG400: 1 10/100 Mbps Ethernet InterfaceVoice ProcessingProtocol: SIP, IAX2Transport: UDP, TCP, TLS, SRTPVoice Codec: G.711 (alaw/ulaw), G.722, G.726, G.729A, GSM, ADPCM, SpeexEcho Cancellation: ITU-T G.168 LECDTMF Mode: RFC2833, SIP INFO, In-bandSIP Server for IP Phones IncludedSIP Response Code SwitchCall Progress Tone Generation1 Stage/2 Stage DialSystem Features for Yeastar TG400 4 Ports GSM VoIP GatewayMobile Ports GroupsVoIP Trunk GroupIncoming /Outgoing Routing rulesBlack ListHotlineAutoCLIPCall Duration LimitationCall TransferCall BackCall Detail Record (CDRCall Status DisplayNTPIP BlacklistNetwork Attack AlertPacket CaptureSystem LogsSystem FeaturesMobile Ports GroupsVoIP Trunk GroupIncoming /Outgoing Routing rulesBlack ListHotlineAutoCLIPCall Duration LimitationCall TransferCall BackCall Detail Record (CDRCall Status DisplayNTPIP BlacklistNetwork Attack AlertPacket CaptureSystem LogsMobile FeaturesGSM Frequency: 850/900/1800/1900MHzWCDMA Frequency: 850/1900MHz, 850/2100MHz, 900/2100MHzSMS Sending and ReceivingSend Bulk SMSSMS CenterGain AdjustmentUSSDPIN ModifyCarrier Selection: Auto/ManualTalk Time AlarmCaller ID/CLIROpen API for SMS and USSDNetwork & ManagementNetwork Protocol: FTP, TFTP, HTTP, SSHNAT Traversal: Static NAT, STUNStatic RouteOpenVPNFirewallVLANQoS/ToSDDNSConfigure Backup/RestoreFirmware Upgrade by HTTP/TFTPWeb based ConfigurationPhysicalSize (mm): 213x160x44Power Supply: AC 100-240V
