What is a BRI ISDN?
Basic ISDN (BRI) is designed to meet the needs of most individual users and small networks. It is fairly inexpensive and can use existing phone wiring. It divides the telephone line into three channels: two 64Kbps bearer channels (B channels) and one 16Kbps D channel for setting up and managing calls. In some situations, the two bearer channels can function together as a single virtual channel, with a data transmission speed of 128Kbps.
