BRI

BRI (Basic Rate Interface) is a type of ISDN (Integrated Services Digital Network) service. It provides two 64 kbps B-channels and one 16 kbps D-channel, often referred to as 2B+D. These channels allow voice, video and data to be transmitted simultaneously over a single line.

BRI and PRI

Although both BRI and PRI (Primary Rate Interface) are ISDN services, they have differences.