Key Specifications/Special Features:
 
1.It is a 8 channels GSM Gateway that has 8 ports FXS interfaces, 1 SIM card per channel;
2.It can connect with ordinary telephone set, PBX, VoIP Gateway, Billing meter etc.;
3.Compatible with 850/1900/900/1800mhz
4.One Number Unified;
5.Callback Function
6.Provide accurate anti-polarity signal
7.Support DTMF
8.Support 2ND Stage Dialing
9.Separate Power On/Off controller
10.Can regulate SPK & MIC volume
11.Setting dialing time delayed 
12.Setting automatic dialing
13.Support to dial all numbers including of */#
14.Barred telephone numbers can be set flexibly
15.Lock SIM card and phone
16.Presetted local area code and IP access numbers, identity automatically user's dialing numbers to simplify use's operation process.
17.Supporting setting and modification of presetted local area code, IP access number and other preferences by using DTMF signals of ordinary
 
 
 
Features:
1.Simple to install and easy to maintain
2.High-quality voice
3.Strong signals with high gain antenna
4.Offering keypad command sets to define functions
5.Enhanced high gains external antenna
6.Wide voltage range & Low power consumption