ISDN BRI provides how many B channels?

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ISDN BRI provides how many B channels?

a - 2
b - 3
c - 22
d - 30

2006-09-16 04:49:34 · 2 answers · asked by Hacker 3 in Computers & Internet ➔ Internet

2 answers

depends

there is 2B+D and 1B+D

so "a" is closest

2006-09-16 04:52:24 · answer #1 · answered by Bill 6 · 0⤊ 0⤋

The ISDN Basic Rate Interface (BRI) service offers two B channels and one D channel (2B+D). BRI B-channel service operates at 64 kbps and is meant to carry user data; BRI D-channel service operates at 16 kbps and is meant to carry control and signaling information, although it can support user data transmission under certain circumstances.

2006-09-16 04:53:19 · answer #2 · answered by linen 2 · 0⤊ 0⤋