850/900/1800/1900Mhz GSM gateway

1,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 [Sim300( Tri-band 900/1800/1900Mhz),M10(Quadband 850/900/1800/1900Mhz) or Q2403A(900/1800MHZ), to make; 5) Can adjust dial interval from 0.5sec to 9 secs by setting up from telephone set; 6) Can adjust voice volume by setting up from telephone set; 7) SIM card supported (1.8V, 3V); 8) Caller ID display; 9) DTMF Dialing; 10) Bell signal; 11) Polarity reversal; 12) 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 LED indicator; 16) IMEI Change (optional). 17) back up Li-ion battery( Optional) 7.2V 1300mAh.standby 24hrs,talking time: 2.5hrs. 2,Technical Specifications Air interface standard: GSM850/1900Mhz,900/1,800Mhz phase 2+ full band Frequency ranges: A) GSM 850 GSM 1900: I) Transmission: 869.2 893.8MHz I) Transmission: 1, 930 1, 990MHz Ii) Reception: 824.2 848.2MHz Ii) Reception: 1, 850 1, 910MHz B) GSM 900: GSM 1800: I) Transmission: 890 915MHz I) Transmission: 1, 710 1, 785MHz Ii) Reception: 935 960MHz Ii) Reception: 1, 805 1, 880MHz Phone interface: supply RJ-11 Phone Interface Hanging voltage: 45V Picking off voltage: 30mA / 41mA Dialing tone Frequency: 450Hz Antenna interface: Antenna amplifying>2.5db Sensitivity:<-104DBM Transmitting power<3W AC-Adapter interface: Input: AC 110 240VAC 50 60Hz Output: 12DC 1A. AC-Adapter type: EU,US,AU,British can be optional 3,Operation Circumstance: Operation temperature: -10c 60C Storage temperature:-20C 70C Operation humidity:45%-95% Atmosphere pressure:86-106Kpa Environment noise: <60DB Transmitting Power:2W Sensitivity: <-104dbm Antenna Amplifying: >2.5db Dialing frequency: 450Hz Hanging voltage: 45V Picking current: 30mA/41mA 4,Check Package: ETROSS-8848 GSM FWT 1 piece; Ac-adapter 12V 1A: 1 piece, GSM Antenna with 3m cable 1 piece, User’s Manual 1 piece, G.W: 0.75kg per unit. And 20pcs per carton, 16kg per carton. Gift carton Measurement: 55cmX34.5cmX32.5cm