A digital transmission line that provides 24 communications channels in one consolidated circuit. Among the most common connections used in telephony.
A special type of telephone line for digital communications, with a maximum data rate of 1.544 million bits per second.
A T1 line consists of twenty-four 64 Kbps channels. A T1 line uses copper wire and spans distances within metros. There are 2 types of T1 lines: T1 access lines and T1 PRI lines.