i believe it was a separate 8kbps channel for each 56kbps line for out-of-band s...

		a-dub on Jan 14, 2024 \| parent \| context \| favorite \| on: What Was ISDN? i believe it was a separate 8kbps channel for each 56kbps line for out-of-band signaling (ie, per-line control plane).