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What is Multiplexing Techniques in Telephony about?
Multiplexing techniques allow multiple communications to be transmitted over a single line. There are two main types: frequency division multiplexing assigns each signal a different frequency, while time division multiplexing divides time into slots and assigns each signal a time slot in repeating frames. Pulse code modulation converts analog signals to digital by sampling, quantizing, and encoding. It is used with time division multiplexing to combine telephone channels into primary multiplex groups of 24
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