Product Name: Etross 8828 with LCD Display GSM to PSTN Landline Converter GSM Fixed Cellular Terminal Model NO.: ETS-8828 Condition: New Usage: PBX Telephone Security System Fax(Optional) PSTN Type: GSM Trademark: OEM Transport Package: Gift Box /Carton Origin: China Product Description 1.General DescriptionGSMFWT-8828 is aGSMto analog converter with LCD display(single port, insert 1 sim card only), the device can produce a FXS line to allow a regular phone to be connected and used just like a local landline(PSTN) except your calls will go out the GSM network. This device can both receive and make calls.The main applications are as below:Connect RJ-11 FXS line to ordinary telephone set for voice call;Connect PBX for call extensions;Connect billing systems for public phone use;Connect VoIP FXO gateway to realize VoIP call termination;Connect alarm system for security purpose, etc.2.Features:1) It is a 1 channel GSM Gateway which has 2 RJ-11 outputs for extensions;2) It can connect with ordinary telephone set, PBX , VOIP Gateway, Billing meter etc. ;3) Dialing tone frequency:450hz;4) Employ Industrial module to make;5) Can adjust dial interval from 0.5 sec to 9 secs by setting up from telephone set; 6) Can adjust voice volume by commandfrom telephone set; 7) SIM card supported (1.8V, 3V);8) Caller ID display;9) DTMF Dialing;10) Bell signal;11) Polarity reversal/12Khz/16Khz pulse billing12) The RJ-11 socket which connect the phone or billing system for metering purpose;13) Antenna socket (SMA);14) IP Presetting;15) Working status and Signal Strength by LCD display; 16) IMEI Change (optional).17) back up Li-ion battery( Optional) 7.2V 1000mAh.standby 24 hours,talking time: 2.5hours.3.Technical Specifications:Air interface standard: GSM850/1900Mhz,900/1,800Mhz phase 2+ full bandFrequency ranges:A) GSM 850 GSM 1900:I) Transmission: 869.2 ~ 893.8MHz I) Transmission: 1, 930 ~ 1, 990MHzIi) Reception: 824.2 ~ 848.2MHz Ii) Reception: 1, 850 ~ 1, 910MHzB) GSM 900: GSM 1800:I) Transmission: 890 ~ 915MHz I) Transmission: 1, 710 ~ 1, 785MHz Ii) Reception: 935 ~ 960MHz Ii) Reception: 1, 805 ~ 1, 880MHzPhone interface: supply RJ-11 Phone InterfaceHanging voltage: 45VPicking off voltage: 30mA / 41mADialing tone Frequency: 450HzAntenna interface: Antenna amplifying>2.5dbSensitivity:<-104DBMTransmitting power<3WColor: WhiteAC-Adapter interface: Input: AC 110~240VAC 50~60Hz Output: 12DC 1A.AC-Adapter type: EU,US,AU,British can be optional4.Operation Circumstance:Operation temperature: -10c~60CStorage temperature:-20C~70COperation humidity:45%-95%Atmosphere pressure:86-106KpaEnvironment noise: <60DBTransmitting Power:2WSensitivity: <-104dbmAntenna Amplifying: >2.5dbDialing frequency: 450HzHanging voltage: 45VPicking current: 30mA/41mA5.Packing List:ItemQtyRemarksGSM FWT 88281White colorUser's Manual1PrintedAntenna13M cable antennaPower supply1DC 12V 1ABack up battery1In-built Li-ion batteryabout Etross