How does a T1 work?
A T1 uses pulse code modulation and time-division multiplexing to deliver voice and data information simultaneously. T1 is a digital transmission service that can be divided into 24 voice channels for carrying voice and data. The entire 1.544 Mbps bandwidth, or any portion of this, can be used as a single high-speed data channel. A T1 line can carry both data and voice signals on the same line with the data part of the line continuously connected.
