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Service Evaluation System

Код 2484086

  • ISBN: 978-5-5122-0294-4

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High Quality Content by WIKIPEDIA articles! The Service Evaluation System (SES) was an Operations Support System developed by Bell Laboratories and used by telephone companies beginning in the late 1960s. Many local, long distance, and operator circuit-switching systems provided special dedicated circuits to the SES to monitor the quality of customer connections during the call setup process. Calls were selected at random by switching systems and one-way voice connections were established to the SES monitoring center.

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ISBN: 978-5-5122-0294-4

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Путешествия, туризм, природа Техника Домашние животные

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