Brand: ETROSS or OEM brand
Model No.: ETROSS-8888G
Product name: 8 Ports/Channels 8 SIM Cards GSM FWT Fixed Wireless Terminal/GSM FCT Fixed Cellular Terminal/GSM Gateway/GSM WLL/Analog GSM Gateways/GSM Channel Bank/GSM SIM Box/GSM Roaming Terminals/FXS Ports Gateway
Frequency: GSM 850/1900MHz,900/1800MHz

General Description:
Etross-8888 is a GSM to Analog Converter, 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 application is: Connecting the RJ-11 FXS line to connect Ordinary telephone set for voice call, to connect PBX for call extensions, to connect billing systems for public phone use, to connect VoIP gateway to realize VoIP call termination, to connect alarm system for security purpose, etc. It is not a VOIP gateway, nor a GSM+VOIP gateway, It is a GSM Fixed Wireless Terminal that produces a Analog FXS phone line.

Features:
1.DTMF Dialing
2.IP Presetting
3.Has 8 FXS ports
4.IMEI Changeable
5.Displays caller ID
6.Can hide subscriber ID
7.Bell signal,clear voice
8.Comptiable with Asterisk
9.SIM card supported(1.8V,3V)
10.Simple to install and operate
11.Provides reversal polarity for metering
12.8 SIM cards supported,2 RJ11 phone interfaces
13.Working status and Signal Strength by LED indicator
14.Compatible to any telephones,PBX,PABX,VOIP gateway,call-back system

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:8 RJ-11 Phone Interfaces
Picking off voltage: 30mA / 41mA
Antenna interface: SMA antenna connection
Transmitting power<3W
Adapter interface:
INPUT:AC 175~260V
OUTPUT:+12V/1000MA

Operation Circumstance:
Operation temperature: -10c~60C
Storage temperature:-20C~70C
Operation humidity:45%-95%
Atmosphere pressure:86-106Kpa
Environment noise: <60DB
Sensitivity: <-104dbm
Antenna Amplifying: >1.5db
Dialing frequency: 450Hz
Hanging voltage: 45V
Picking current: 30mA/41mA

Package(Standard carton,1pcs/carton):
G.W:4.5kg
8 port gsm fwt:1 pcs
User's Manual:1pcs
Power Supply Cable:1pcs
GSM Antenna with 3m cable:8pcs
Product dimension:L455x W280 x H45mm
Gift box dimension:L510x W300x H64mm

Warranty:1 year