FXO Gateway :- FXO gateways are designed to connect analog phone lines to VoIP systems. They receive the line from the PSTN (Public Switched Telephone Network) and generate a loop closure, allowing analog devices to communicate with VoIP networks. FXO gateways are essential for integrating analog devices with digital communication systems like PBX or VoIP gateways. Enables communic... https://medium.com/@ubiqcomindia/what-is-fxo-and-fxs-gateway-34b984f0b8fa