1. Based on GSM 900/1800 or 850/1900MHz
2. Support 8 SIM cards
3. Support reverse polarity
4. Can connect to PBX...

Features:
It is a 8 channels GSM Gateway that has 8 ports FXS interfaces.
It can connect with ordinary telephone set, PBX or VoIP Gateway, call back system etc.
Dialing tone frequency: 450Hz
Employ Industrial module (SIM340) to make
SIM card supported (1.8V, 3V)
Caller ID display
DTMF Dialing
Bell signal
Polarity reversal
The RJ-11 socket which connect the phone or billing system for metering purpose
Antenna socket (SMA)
IP Presetting.
Working status indicator
Signal Strength indicator

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>1.5dB
Sensitivity&colon; <-104dBm
Transmitting power<3W
Adapter interface&colon; INPUT&colon; AC 175~260V
OUTPUT&colon; &plus;12V&sol;1000mA

Operation Circumstance&colon;
Operation temperature&colon; -10c~60C
Storage temperature&colon; -20C~70C
Operation humidity&colon; 45&percnt;-95&percnt;
Atmosphere pressure&colon; 86-106Kpa
Environment noise&colon; <60dB
Transmitting Power&colon; 2W
Sensitivity&colon; <-104dBm
Antenna Amplifying&colon; >1&period;5dB
Dialing frequency&colon; 450Hz
Hanging voltage&colon; 45V
Picking current&colon; 30mA&sol;41mA

Package&colon;
Product dimension&colon; L455x W280 x H45mm
Gift box dimension&colon; L510x W170x H64mm
G&period; W&colon; 4&period;5kg