Pulse dialing is a signaling technology in telecommunications in which the direct current flowing in the telephone local loop circuit is interrupted in a pattern according to a coding system for each signal (digit) transmitted. This lends the technology the name loop disconnect signaling.
Pulse dialing is a signaling technology in telecommunications in which the direct current flowing in the telephone local loop circuit is interrupted in a pattern according to a coding system for each signal (digit) transmitted. This lends the technology the name loop disconnect signaling.
Source: Wikipedia "Pulse dialing" · CC BY-SA 4.0
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