The VS-GWP2120 Wireless Gateway is a device that connects traditional mobile networks (2G, 3G, 4G) with internet-based phone systems (VoIP). This allows businesses to make and receive calls over network while using mobile networks as a backup.

It comes in two models: VS-GWP1600 and VS-GWP2120. The VS-GWP2120 can hold up to 11 plug-in modules, supporting 4 to 44 SIM card connections at once. You can easily swap SIM cards and upgrade or replace parts without shutting down the system.

This gateway is easy to set up and expand, thanks to its user-friendly interface. You can add or remove modules as needed. It also supports high-quality voice calls and SMS, working with popular phone systems like Asterisk®, 3CX®, and FreeSWITCH®.

In short, the VS-GWP2120 helps businesses cut costs by connecting mobile and internet calls smoothly, while ensuring reliable and high-quality communication.