BRI is an acronym for Basic Rate Interface. BRI is one of several different ISDN configurations – specifically, one that is used in basic digital phone and data services – at a residence-scale, so for individual or small family usages. It offers two 56Kbps or 64Kbps channels that can be used for voice, graphics and data transmissions. Additionally, there is also a 16Kbps channel that is used for signaling purposes, though it can transfer a mixture of signaling content and data.
