Port Overseas Trade (Port FXS) is a telecommunications interface customary that defines {the electrical} and signaling necessities for connecting a phone or different communications gadget to a phone community.
Port FXS is used to attach a phone or different communications gadget to a phone community, akin to a Public Switched Phone Community (PSTN) or a Non-public Department Trade (PBX). Port FXS offers {the electrical} energy and signaling required for the phone or different communications gadget to speak with the phone community.