BRI Trunk Overview

This topic describes what is BRI trunk and provides the information of BRI cable.

What is BRI trunk

Basic Rate Interface (BRI) is an Integrated Services Digital Network (ISDN) access method, typically used for home and small offices.

The BRI configuration provides 2 bearer channels (B channels) at 64 kbit/s each and 1 data channel (D channel) at 16 kbit/s. The B channels are used for voice or user data, and the D channel is used for any combination of data, control/signalling, and X.25 packet networking.

BRI cable

Yeastar P-Series PBX System supports for connecting an RJ11 4 pin cable or an RJ12 6 pin cable to a BRI port.

RJ11 4 pin connector
RJ12 6 pin connector