Page 38 - eBOOK FUNDAMENTAL OF TELECOMMUNICATION NETWORK
P. 38

PUBLIC SWITCHED



                                         TELEHONE




                           NETWORK (PSTN)







                   PSTN  is  referred  as  circuit-switched  technology  that

                   comprises of nodes and a transmission channel.




                   Consists  of  telecommunication  instruments,  that  is

                   inter-connected by switching center (in central office).




                   It  is  the  combination  of  the  telephone  networks  used

                   worldwide,  including  landlines,  fiber  optic  cables,

                   switching centers, cellular networks, as well as satellites

                   and cable systems.




                   A  systematic  set  of  interconnecting  transmission  lines

                   that  allows  telephone  services  to  communicate  with

                   one another at any time and from any location.





















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