Public Switched Telephone Network (PSTN)

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Public Switched Telephone Network

Last Updated: Saturday, 19-May-2018 15:41:17 MDT | By InetDaemon

Definition of the Public Switched Telephone Network
Visual Guide to the Public Switched Telephone Network
History of the Public Switched Telephone Network
Definition of a Subscriber
Definition of Phone Companies (Common Carriers)
Customer Premise Equipment (CPE) used in the Public Switched Telephone Network
PSTN Central Office Equipment (Branch Office)
1. Description of a Central Office
2. Outside Plant
3. Inside Plant
  1. Distribution Frames
  2. Punchdown Blocks
  3. Patch Panels
  4. Digital Access Cross Connecting Switches (DCCS, DACS or DAX)
  5. Multiplexors
    1. Time-Division Multiplexors
    2. Statistical Time-Division Multiplexers
PSTN Calling Areas and Exchanges
1. The LERG and Telcordia
  1. North American Numbering Plan
  2. Numbering Plan Area (NPA /NXX)
  3. Common Lanugage Location Identifier Codes (CLLI codes)
2. Local Access and Transport Area - LATA
  1. Inter-LATA
  2. Intra-LATA
3. Public Exchanges
  1. Local Exchange
  2. Regional Exchange
  3. Foreign Exchange
  4. National Exchange
  5. International Exchange
4. Private Branch Exchanges (PBX)

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