Specifications

Band: Etross or OEM
Model No. Etross-8888 8ports-32simcards
Name: GSM Fixed Wireless Terminal/GSM Gateway/

GSM to Analog Converter

Frequency: 850/900/1800/1900Mhz

Features
1.a 8 channels GSM Gateway that has 8 ports FXS interfaces
2.It can connect with ordinary telephone set,PBX or VOIP Gateway,call back system etc.
3.it is comptiable with Arsterisk
4.SIM card supported (1.8V, 3V)
5.use new industrial module
6.caller ID display
vide polarity reversal for metering
8.4 sim cards can rotate by using time or call out times
9.IMEI changeable
10.hide caller ID avaiable 

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
Picking off voltage: 30mA / 41mA
Antenna interface: Antenna amplifying>1.5db
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