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The model 500 rotary dial telephone by Western Electric was a pulse-dialing instrument.
The model 500 rotary dial telephone by Western Electric was a pulse-dialing instrument.
Swedish phone with one pulse for 0
Swedish phone with one pulse for 0
British (GPO) Type 232 phone of 1932
British (GPO) Type 232 phone of 1932
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Earth station at the satellite communication facility Raisting Earth Station in Raisting, Bavaria, Germany
Earth station at the satellite communication facility Raisting Earth Station in Raisting, Bavaria, Germany
Optical fibre provides cheaper bandwidth for long-distance communication.
Optical fibre provides cheaper bandwidth for long-distance communication.