There are three 3G Gateway models with VoxStack series 3G Gateway, the VS-GW1202 series, VS-GW1600 series and the VS-GW2120 series. The new 3G Gateway VS-GW1202-8W with the Modular Design can provides up to 2 plug-in 3G gateway modules which could support 4 or 8 3G channels and 2 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 use standard SIP protocol and compatible with Leading IMS/NGN platform, IPPBX and SIP servers, support most of the VoIP operating platforms such as Asterisk, Elastix, 3CX, FreeSWITCH ,Broadsoft etc.