Abstract
In addition to offering public telegram services over transatlantic facilities, cable and radio carriers today offer various forms of temporary, switched teleprinter interconnections between correspondents, upon request of a calling party, in a manner and through means characteristic of long-distance telephone calls. Regardless of forms of the national teleprinter exchanges involved, the international portion of the haul is usually between manual boards at central offices. The placement of a specific call over a particular idle two-way trunk among those at the moment available is controlled by concerted action of the two operators guided by information exchanged over a parallel order circuit or “bid channel” connecting them.
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Schedule a callMore From: Transactions of the American Institute of Electrical Engineers, Part I: Communication and Electronics
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