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OpenVox VS-GW2120-28W

OpenVox VS-GW2120-28W

28 3G/GSM Channels, SIP, WCDMA: 850/900/1900/2100 MHz, Quad-Band GSM/GPRS 850/ 900/1800/1900 MHz, G.711A, G.711U, G.729, G.722, G.726, iLBC, GSM, WEB, IMEI

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$4,687.54 tax incl.
$3,874.00 tax excl.

VS-GW2120 3G Series


OpenVox VoxStack Series 3G (WCDMA) Gateway is an industry 1st open source asterisk-based 3G VoIP Gateway solution for SMBs and SOHOs. With friendly GUI and unique modular design, users may easily setup their customized Gateway. Also secondary development can be completed through AMI (Asterisk Management Interface).

There are three 3G Gateway models with VoxStack series 3G Gateway, the VS-GW1202 series, VS-GW1600 series and VS-GW2120 series. The new 3G Gateway VS-GW2120 Series with the Modular Design can provides up to 11 plug-in GSM gateway modules which could support from 4 to 44 3G/UMTS channels and 3 Ethernet ports, developed for interconnecting a wide selection of codecs, including G.711A, G.711U, G.729, G.722, G.723, G.726 & GSM. With 3G connection to VoIP gateway, it can quickly reduce telecommunication expenses and maximize cost-savings. With the unique design of the VoxStack Gateway, it can support hot-swap for both SIM cards and 3G gateway modules. Users can simply add or remove the modules for hardware expansion or exchange. Each 3G gateway module runs an independent asterisk system inside.

The VoxStack gateway designs with a Lan Switch board that provides stackability on the hardware upgrade. It supports SMS messages sending and receiving and group sending and SMS to email. The 3G Gateways are 100% compatible with asterisk, Elastix, trixbox, 3CX FreeSWITCH sip server and VOS VoIP operating platform.

Technical Specifications:

  • Up to 44 3G/UMTS Channels
  • 1 SIM card per 3G/UMTS channel
  • 3 10/100M LAN interfaces
  • Up to 44Standard SMA-K interfaces
  • Storage temperature range: -20~70℃
  • Operation temperature range: 0~40℃
  • Operation humidity range: 10%~90% non-condensing
  • Power source: 100-240V/2-3A
  • Power: 88W
  • Dimension: 48.3cm*33.1cm*8.8cm
  • Weight:
    VS-GW2120: 6144g
    VS-GWM400W: 251g

The VS-GW2120 3G series includes the following models:

Product  Model



4 3G/UMTS Channels VoIP Gateway


8 3G/UMTS Channels VoIP Gateway


12 3G/UMTS Channels VoIP Gateway


16 3G/UMTS Channels VoIP Gateway


20 3G/UMTS Channels VoIP Gateway


24 3G/UMTS Channels VoIP Gateway


28 3G/UMTS Channels VoIP Gateway


32 3G/UMTS Channels VoIP Gateway


36 3G/UMTS Channels VoIP Gateway


40 3G/UMTS Channels VoIP Gateway


44 3G/UMTS Channels VoIP Gateway

Software & Platform:

  • Linux


  • Certificates:CE




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