ISDN's basic Rate Interface(BRI) is also known as?
ISDN's basic Rate Interface (BRI) is also known as 2D + B.
Basic Rate Interface (BRI) is one of the two levels of services provided by Integrated Services Digital Network (ISDN). BRI is made for home and small-scale enterprise use.
Both rates include a number of B-channels and a D-channel for transmission of data. The B channel carries data, voice, and other services, while the D channel carries controlling and signaling data.