ISDN BRI (Basic Rate Interface) is a type of Integrated Services Digital Network (ISDN) connection that provides two bearer channels (B channels) and one data channel (D channel) over a single copper pair.
Here are the key features of ISDN BRI:
- Two 64 Kbps bearer channels (B channels) for voice or data
- One 16 Kbps data channel (D channel) for signaling and control
- Total bandwidth: 144 Kbps (2 x 64 Kbps + 16 Kbps)
- Supports simultaneous transmission of voice and data
- Uses the same copper wiring as traditional phone lines
- Requires an ISDN terminal adapter or router to connect to devices
ISDN BRI is commonly used for:
- Voice and data connections
- Internet access
- Remote access to LANs (Local Area Networks)
- Leased line replacement
- Video conferencing
ISDN BRI has largely been replaced by newer technologies like DSL, cable modem, and fiber optic connections, which offer faster speeds and more efficient data transmission. However, it may still be used in some legacy applications or areas where newer technologies are not available.
