A split pair is a condition which results when wires from two different twisted pairs are tied together by mistake. In telecommunications, most wiring is done using the twisted-pair configuration, in which two conductors are wrapped together...

Tip and ring are really holdover terms from the beginning days of telephone service, when there was an actual tip and an actual ring on a telephone jack. During those times, telephone operators used plugs or jacks...

Dual tone multi-frequency (DTMF) is a technique that has been used since 1963 to dial telephone numbers, and to send commands to switching systems. Prior to DTMF, telephone systems used a rotary dial, which was considerably less...

Despite the growing demand for data and VOIP telephones, the analog telephone is still pretty much ubiquitous, especially in the residential market. These phones use a pair of simple copper wires that are usually bundled into a...