GSM Gateway 8 channels 32 SIM card with rotation

GSM Gateway 8 channels32 SIM card with rotationFeatures:1) It is a 8 channels GSM Gateway that has 8 ports FXS interfaces;2) It can connect with ordinary telephone set, PBX , VOIP Gateway, Billing meter etc.;3) Dialing tone frequency:450hz;4) Employ Industrial module Sim300(900/1800/1900Mhz),M10(850/900/1800/1900Mhz), Wavecom 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)3,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 240V OUTPUT: 5V 7AAC-Power type: EU,US,AU,British can be optional4,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: >1.5db Dialing frequency: 450Hz Hanging voltage: 45V Picking current: 30mA/41mA5,Checking Package: ETROSS-8888 GSM 8 PORTS FWT: 1pcs;Power Supply Cable: 1pcs,GSM Antenna with 3m cable: 8pcs,User’s Manual 1pcs.Product dimension: L455x W280 x H45mm Gift box dimension: L510x W170x H64mm G.W: 4.5kg