| BRI This
ISDN service is currently offered by many telephone companies for home
users. With only slight modifications to existing telephone service, ISDN
BRI allows up to 128-kbps throughput. It consists of two 64-kbps B
channels for carrying data or voice and one 16-kbps D channel for call
setup and signaling. BRI service is therefore sometimes referred to as
2B+D. |