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What is signal?

Updated: 8/16/2019
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13y ago

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In telephony, signaling is the exchange of information between involved points in the network that sets up, controls, and terminates each telephone call. In in-band signaling , the signaling is on the same channel as the telephone call. In out-of-band signaling , signaling is on separate channels dedicated for the purpose.

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15y ago
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13y ago

A signal is a time varying parameter ( quantity).

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