Brand: ETROSS or OEM brand
Model No.: ETROSS-8888G
Product name: 8 Ports/Channels 32 SIM Cards GSM FWT Fixed Wireless Terminal/GSM FCT Fixed Cellular Terminal/GSM Gateway call termination/GSM WLL wireless local loop/Analog GSM Gateways/GSM Channel Bank/GSM SIM Box/GSM Roaming Terminals/FXS Ports Gateway
Frequency:Quad band 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 billing
12.Working status and Signal Strength by LED indicator
13.32 SIM cards can rotate by using time or calling-out times automatically
   1) IMEI change by DTMF from telephone set;
   2) SIM rotation;
   3) Auto IMEI change when SIM rotation.
- rotator by really clock (4 time oclock)
- rotator by dial times
- rotator by total talking minutes
- rotator by working hours
14.Compatible to any telephones,PBX,PABX,VOIP gateway,call-back system,alarm system and billing machine

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):
GSM FWT:1 pcs
User's Manual:1pcs
Power Supply Cable:1pcs
GSM Antenna:8pcs

G.W:3kg
Product Size:L25*W15*H12(cm)

Warranty: one year