Trunk versus toll telephony
http://dbpedia.org/resource/Trunk_versus_toll_telephony
Trunk and toll calling were two alternative methods of charging customers for long-distance calls in the United Kingdom in the first half of the 20th century. The distinction became obsolete with the introduction subscriber trunk dialling (STD).
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Trunk versus toll telephony
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1354324
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Trunk and toll calling were two alternative methods of charging customers for long-distance calls in the United Kingdom in the first half of the 20th century. The distinction became obsolete with the introduction subscriber trunk dialling (STD).
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3763