

A digital transmission link with a capacity of 1.544 Mbps.
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 64 Kbps. But, with more advanced digital voice encoding techniques, it can handle more voice channels.
T1 is a standard for digital transmission in the United States.
T1 lines are used to connect networks across remote distances.