Basic Rate Interface
The Basic Rate Interface is the full form of BRI. Integrated Services Digital Network(ISDN) has two service levels in which the Basic Rate Interface(BRI) is one of them. It is used for small scale enterprises and also for home. It consists of two bearer channels one is 16 kbps D-channel and the other one is 64 kbps B-channel for transmission of data. The user can only have up to 128kbps service.