A VoIP gateway is a piece of hardware that links regular phone lines to VoIP networks. It connects phones that use analog or digital technology to internet-based calling services. A lot of organisations still utilise their old PBX systems. A gateway lets them switch to VoIP without having to buy new hardware. The gateway converts voice signals from analog or digital formats into VoIP ... https://www.akom.in/blog/explain-the-voip-gateway-and-its-working-a-complete-guide-by-redstone