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Off-hook

Код 1164738

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Аннотация к книге "Off-hook"

High Quality Content by WIKIPEDIA articles! In telephony, the term off-hook has the following meanings: 1. The condition that exists when a telephone or other user instrument is in use, i.e., during dialing or communicating. Note: off-hook originally referred to the condition that prevailed when telephones had a separate earpiece (i.e., receiver), which hung from its switchhook until the user wished to activate it. The weight of the receiver no longer depresses the spring loaded switchhook,...

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Издательство: Книга по требованию
Дата выхода: июль 2011
ISBN: 978-6-1319-8100-5
Объём: 116 страниц
Масса: 196 г
Размеры(высота, ширина, толщина), см: 23 x 16 x 1

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