What is PSTN? and how does it works .

What is PSTN?

 PSTN is a very ancient and major form of telecom network system.  Mainly it is used for transmitting voice.  Copper cable is very important in this because the voice is carried here only with the help of copper cable.  If seen this way, it can be considered a simple telephone system.  In PSTN, whenever one person makes a call to another person, the switching unit helps in transferring that call correctly.

 In earlier times PSTN was known only for voice calls but nowadays it is also used to transfer data.  Here your computer is connected to the servers of the Internet Service Provider (ISP) company through a dial-up connection.  Any dial-up connection is a temporary connection.  Which is created between your computer and the ISP’s server.  Dial-up connections are made using a modem.  Which uses the telephone line to dial the number of the ISP server.

What is the full form of PSTN?

 The full form of PSTN is “Public Services Telephone Network”.  And its Hindi meaning is “Public Service Telephone Network”.

How does PSTN work?

 The working of PSTN is as follows, let us know-

 • To establish a PSTN connection, the most important requirement is a copper cable and two telephones are connected with a copper cable.

 • Then when any person talks through telephone, sound wave is generated through it.  Which it converts into analog signal.

 • Now analog signals travel from one telephone to another with the help of cables.  And again the analog signal is converted into Sound Wave.

 • In this way the voice of the first person is heard by the second person.  The entire system runs according to some method.

 What are the benefits of PSTN?

 Some of the benefits of PSTN are as follows.  Let us know through the following-

 1. PSTN is very easy to do.

 2. The voice quality of PSTN is better than other connections.

 3. PSTN connection does not require electricity or internet.

 4. You get many types of services through PSTN.  Such as caller ID, call waiting, call forwarding etc.

What are the disadvantages of PSTN?

 Some of the losses incurred by PSTN are shown below-

 1. Its speed is very slow.

 2. Call fees are also very expensive.

 3. There is a lack of modernity in PSTN because it is based on old technology.

What did we learn?

 Friends, with the help of this article you must have known what PSTN is.

 I hope you liked all the information.  Please share all this information with your friends and family and if you have any confusion then you can ask without hesitation by commenting.

 “Thank you”