Answer
Jun 16, 2025 - 07:09 AM
Sure! SIP (Session Initiation Protocol) is a communication protocol used to initiate, maintain, and terminate real-time sessions involving video, voice, messaging, and other communications applications over the internet. PRI (Primary Rate Interface) is a telecommunications standard used on an Integrated Services Digital Network (ISDN) to carry multiple DS0 voice and data transmissions between a network and a user, typically over a T1 line in North America or an E1 line in other regions.