What is Difference Pri Trunk and Sip Trunk Gateway
A SIP (session initiation protocol) trunk to PRI (primary rate interface) gateway, also known as a SIP trunk to PRI converter, connects today's SIP trunking phone services to legacy PRI phone systems. the interconnection between a SIP (Session Initiation Protocol) based VoIP (Voice over IP) network and a PRI (Primary Rate Interface) based traditional telephony network.