Purchase a dependable FXS VoIP Gateway to easily integrate vintage PBX systems, analog phones, and fax machines with modern IP PBX for improved communication. The FXS Gateway are cost- effective, dependable VoIP gateways that seamlessly connect analogue phones, fax machines, and legacy PBX systems with IP PBX https://www.gsmgateway.in/dinstar/Analog-voip-gateway/fxs-gateway.html