Shenzhen Letel Technology Co. Ltd.

.., China

VoIP Gateway Analog Telephone Adapter 4 FXS ports -TVG340 Features:Compatible to IEEE 802.3 10BASE-TX Ethernet and IEEE 802.3u 100BASE-TX fast EthernetSupportG.711A/U, G.723.1, G.729 /A/B/AB and GSM610 voice codecCompatible with SIP2.0, H.323 V4 protocalSIP RFC3261TCP/IP: Internet protocalSupport RTP RTCP protocalSupport VAD(Voice activity detection)/CNG(Comfortable noise generation)Echo suppression: G.165/G.1684 FXS ports1 WAN port, 1 LAN port, support routerSupport DHCP, PPPOE, DNS, TELNETSupport HTTP, HTTPS, FTP upgrade Support call forward (Always, busy, no answer), call waiting and per call-waiting blockingVoip speed dial, VoIP digital mapPer area ring tone supportCaller number/name display caller ID /block outgoing caller-ID/Reject anonymous callFacsimile protocol(option): T.30/T.38 MWI(Message wait Indication)DND(Do Not disturb)Configurable/Adaptive jitter buffer sizeSupport VLAN protocal.Support WEB, IVR to configure.Support FXS hotline.Support billing Configurable Device Mode(Router or Bridge)Advance Routing functionStatic Address Assignment according hostname or MACPort forwarding and DMZMulticast Limits for LAN sideConfigurable PHY Speed mode for LAN side2. Specifications:Weight: N.W.:495g; G.W.:600gDimension: 151*97*30mmPower Supply: AC/DC power adapter, input :110V220V, output12V, 800mA Power consumption: < 3wOperation temperature: 0 to 50C (32 to 122F)Storage temperature: -30 to 65C (-22 to 149F) Relative humidity: 10 to 90%, non-condensing