What is T1?


T1 is standard for digital transmission in the United States. It is a digital transmission link with a capacity of 1.544Mbps.

T1 uses two pairs of normal twisted wires, the same as found in most residences. T1 normally handles 24 voice conversations, each one digitized at 64kbps. With more advanced digital voice encoding techniques, T1 can handle more voice channels.

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