3G module OpenVox VS-GWM420W for 4 ports

3G module OpenVox VS-GWM420W - expansion module that allows to increase 4 3G-GSM channels (4 SIM cards) to OpenVox VS-GW1600V2 and OpenVox VS-GW2120V2 gateways.

OpenVox VS-GWM420W is an expansion module that allows you to add four GSM/3G channels on four SIM cards to the VoxStack VS-GW1600v2 and VS-GW2120v2 series gateways. Supports the next-generation 3G/UMTS network. Works in the frequency ranges of 900 / 2100 MHz - 3G / UMTS and 900/1800 MHz - GSM
Supports the new generation network 3G/UMTS. Works in the frequency ranges 900/2100MHz – 3G/UMTS and 900/1800 MHz – GSM.

 SIP support, IAX2 protocol
Add, edit and delete SIP/IAX2 trunk
SIP/IAX2 registration with domain
SIP V2.0 RFC3261 Compliance
DTMF Mode: RFC2833/Inband/SIP Info
Multiple SIP/IAX2 registration modes
Abundant codecs: G.711A, G.711U, G.729, G.722, G.723, G.726, GSM
net
IPv4, UDP/TCP, DHCP, TELNET, HTTP/HTTPS, TFTP
PPTP VPN
HTTP/SSH (Optcal Telnet)
Ping & Traceroute Command on the Internet
Simple Security Strategy: Whitelist, Blacklist, Security Rules
control
Simple and convenient setup via web interface
Maintenance and configuration support via SSH
Support for backup and download configuration files
Support Chinese and English page
Firmware update via HTTP
Support Web and SSH login password
Restore factory settings
CDR (over 200,000 lines of CDR storage locally)
System log
SIP/IAX2 Log
TCP and SIP capture
Features of the system
Combine different SIP/IAX2 trunks into a group
CLID Display & Hide (requires operator support)
Random Call Interval
Call duration limit
Limiting the duration of one call
Real open API protocol (based on Asterisk)
DISA support
SMSC/SMS/USSD
PIN code
Optional voice codec
Port Group Management
SMS Bulk Transceiver, sent to email and automatically sent
SMS coding / automatic identification
SMS Remote Control Gateway
SMS forwarding and quick response
USSD transceiver
Outgoing
Automatic reboot
MMP support
Support for custom scripts, dialplans
Openvox Support 

 Key features of the VS-GWM420W module:
 4 channels GSM/3G4 slots for SIM cardsFrequency range: 3G / UMTS 850/900/1900/2100 MHzPower supply: 1U ATX power souce, 12V/12ASize: 20cm × 13cm × 2.1cmWeight: 170g