auto changed IMEI 8ports 32cards with perfect quality and cheaper price

Our new products 8ports with 32sim with GSM or CDMA or WCDMA can auto changed diffrence IMEI with every rotate time. The operator will just can find the simcard is used by difference mobile. So it can use all of country with normal working. cannot be blocked!
The voice is very clear. the quality is perfect! a lot of VOIP company have buy it.

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 to make
SIM card supported (1.8V, 3V, 5v)
Caller ID display
Hide sender Caller ID.
DTMF Dialing
Bell signal
accuracy Polarity reversal
The RJ-11 socket which connect the phone or billing system for metering purpose
Antenna socket (SMA)
Pre number added.
Working status indicator
Signal Strength indicator
Technical Specifications
Air interface standard: GSM850/1900Mhz,900/1,800Mhz phase 2+ full band
Frequency ranges:
A) GSM 900/1800/850/1900Mhz:
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: 48V
Picking off voltage: 30mA / 41mA
Dialing tone Frequency: 450Hz
Busy tone frequency: 350ms on, 350ms off,450hz
Antenna interface: Antenna amplifying>1.5db
Sensitivity:<-104DBM
Transmitting power<3W
Adapter interface:INPUT:AC 110V or 220V
Operation Circumstance:
Operation temperature: -10c~60C
Storage temperature:-20C~70C
Operation humidity:45%-95%
Atmosphere pressure:86-106Kpa
Environment noise: <60DB
Transmitting Power:2W
Sensitivity: <-104dbm
Antenna Amplifying: >1.5db
Hanging voltage: 48V
Picking current: 30mA/41mA
Package:
Product dimension: L455x W280 x H45mm
Gift box dimension: L510x W170x H64mm
G.W: 4.8kg