8 Ports GSM VOIP Gateway with IMEI changer

Features:
1/4/8 GSM/CDMA/WCDMA channels
Quad-band 800/900/1800/1900MHz
Signal strength indicator, numerous LEDs provide operational status
2/4 RJ45 ports, support router and bridge mode
Support MGCP/SIP protocols, anti-block optional
Balance alarm
Caller number hide or display
IMEI and PIN modified
SMS batch receiving/sending, AT command compatible
Custom IVR (25 seconds)
White & Black list
Echo cancellation for Speakerphone, Comfort noise generation (CNG) ,Voice activity detection (VAD)
Voice prompts, HTTP Web, Auto Provision support for configuration and update
Specifications:
Dimensions(Length Width Height, unit: mm) 440 380 44.5
Operating temperature (unit: C) 0-40
Storage temperature (unit: C) -20-70
Operating humidity 10%-90%
GSM/CDMA/WCDMA SIM Ports 4 channel
Power input 220VAC/50Hz/0.2A
External power input 12VDC/1A
Power (unit: W) 6w
Network interface 10/100base-TX
Number of WAN ports 1
Number of LAN ports 3
8 Ports GSM VOIP Gateway with IMEI changer