1. What is the PRI and SIP line

Question

Accepted Answer

PRI and SIP lines are types of telecommunication lines used for voice and data transmission.

PRI (Primary Rate Interface) is a digital telecommunication line used for carrying multiple voice and data channels over a single line.
SIP (Session Initiation Protocol) is a signaling protocol used for initiating, maintaining, and terminating real-time sessions like voice and video calls over IP networks.
PRI lines are typically used for larger organizations with high call volumes, while SIP lines are more flexible and scalable for businesses of all sizes.
PRI lines require physical connections to the PSTN (Public Switched Telephone Network), while SIP lines use the internet for communication.
Both PRI and SIP lines can be used with PBX (Private Branch Exchange) systems for managing internal and external calls.

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