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8.2 Telephone Network

8.2 Telephone Network. Major Components LATAs Making a Connection Analog Services Digital Services A Brief History. Figure 8.11 A telephone system. Note :.

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8.2 Telephone Network

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  1. 8.2 Telephone Network Major Components LATAs Making a Connection Analog Services Digital Services A Brief History

  2. Figure 8.11A telephone system

  3. Note: Intra-LATA services are provided by local exchange carriers. Since 1996, there are two types of LECs: incumbent local exchange carriers and competitive local exchange carriers.

  4. Figure 8.12Switching offices in a LATA

  5. Figure 8.13POPs

  6. Figure 8.14Rotary and touch-tone dialing

  7. Note: Voice communication used analog signals in the past, but is now moving to digital signals. On the other hand, dialing started with digital signals (rotary) and is now moving to analog signals (touch-tone).

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