A 1.544 Mbit/s unit of transmission bandwidth in North America, and a 2.048 Mbit/s unit of transmission elsewhere. A telephony term describing a 1.544 or 2.048 Mbit/s digital signal carried on a T1 facility.
A high-capacity, high-performance information channel that provides a dedicated private line that has a digital transmission rate of 1.544 million bits per second (Mbps) with a capacity of up to 24 digital channels.
A standard digital circuit. A DS1 circuit can carry 24 channels - each channel is 64 kb/sec, for a total 1.53 Mb/s. Each channel can handle a voice call or data. Groups of channels can be combined to create a single faster digital connection. Also referred to as a T1 or Clear Channel 1.5 Mb/s
A data communications service for data-intensive businesses requiring high transmission speeds (1.544 Mbps). DS1 can transmit voice and data signals, or a combination of both usually over fiber. In the U.S., this is commonly referred to as T1.