On a full-duplex T1 circuit, what's the bandwidth speed in both directions?

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On a full-duplex T1 circuit how much bandwidth can be had on TX and RX at the same time? Is it 1.544 Mbps in both directions at the same time or 768k in both directions at the same time?

Since the T1 circuit is a full-duplex circuit, you have 1.544 Mbps available in both the TX and RX direction. A full duplex circuit is designed such that you have two separate communication paths for the TX and RX sides of the communication. With half-duplex circuits, they share the available bandwidth and communication paths.

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