Telephone Engineering » Exercise - 1 1. A condition of a telephone handset, in which it can be called, is _______ condition. (a) on-hook (b) off-hook (c) busy (d) none of these
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Telephone Engineering » Exercise - 113. The voice frequency channel pass band is : (a) 0 to 4000 Hz (b) 300 to 3000 Hz (c) to carry only speech (d) all of the preceding
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