The Difference between PRI (Primary Rate Interface) and SIP (Session Initiating Protocol)
Why does it matter to your business?
PRI and SIP Trunking are two different methods to connect your business to a regional telephone network.
Both methods require PBX (Private Branch Exchange) equipment where the interchange between your office or facility and public lines takes place. Most existing PBX and IP PBX equipment can support both PRI and SIP Trunking connections, either directly or with an adapter. This makes either an affordable option for most businesses. So what’s the difference?
When making a decision for your business, the number of users, concurrent phone calls, and scalability to match future needs are all important considerations.