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What is the full form of PSTM?

What is the full form of PSTM? Correct Answer Public Switched Telephone Network

The correct answer is option 1.

Concept:

The public switched telephone network (PSTN) offers public telecommunications infrastructure and services.

  • It is often referred to as Plain Old Telephone Service (POTS).
  • The PSTN is the global network of circuit-switched telephone networks run by national, regional, or local telephony providers.
  • These consist of telephone lines, fiber optic cables, microwave transmission connections, cellular networks, communications satellites, and underwater telephone cables that are all joined via switching centers, allowing most phones to interact with one another.
  • It evolved from Alexander Graham Bell's creation of the telephone.
  • Its primary goal is to convey human speech in a recognized format.
  • It is a global aggregate of circuit-switched networks.
  • WANs (wide area networks) are strongly tied with today's telephone systems, which are utilized for both data and voice transmission.

Hence the correct answer is Public Switched Telephone Network.

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