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As a result, the SMTP server receives mail on behalf of each host, and each host then communicates with the SMTP
              server to retrieve messages via the POP3 client-server protocol.
              Telnet

              Telnet is the most used internet protocol for connecting to a distant computer. It enables you to connect to remote
              computers (also known as remote hosts) via a TCP/IP network (such as the Internet). Once your telnet client establishes
              a connection to the distant host, it transforms into a virtual terminal, allowing you to communicate with the remote
              host from your computer with whatever privileges you’ve been granted to that host’s specific program and data.

              Internet Relay Chat

              The IRC protocol is utilised for chatting. It allows you to talk with a group or two
              people at the same time. It is built on the client/server architecture.

              Ð ÐThe  IRC  client  communicates  with  an  IRC  server  by  sending  and  receiving
                 messages. The message is sent from one client to another over the IRC server.

              Ð ÐThe IRC server is connected to a network of other IRC servers. Every user on the
                 IRC server is identified by a unique nickname. If numerous talks are going on at
                 the same time, each user is given their own channel.

                                      Voice over Internet Protocol (VoIP)

                                      It  allows  voice  to  be  transferred  over  a  packet-switched  network  instead  of  a  public
                                      switched  telephone  network.  Phone  calls  can  be  made  utilising  a  normal  internet
                                      connection  and  VoIP  software.  Because  the  Telecommunication  Company’s  service  is
                                      not used, this technique of making phone calls is far less expensive than the traditional
                                      method.  Today,  there  are  three  major  types  of  VoIP  services  in  use,  which  are
                                      as follows:

              Analog-to-digital conversion (ATA)

              It is used to link the computer to the telephone equipment. The phone’s analogue transmissions are converted to
              digital signals via this device. These digital signals are capable of being sent via the internet. Some service providers
              additionally include ATAs as part of their package.
              IP Phones

              IP phones have the appearance of a regular phone or a cordless phone. They are connected directly to the router or
              LAN. They have all of the essential hardware and software onboard to handle the IP call. IP phones are also known as
              VoIP phones, SIP phones, and soft phones.
              Computer-to-Computer

              It is the most easy and straightforward method of using VoIP. Computer, Internet, Speakers, and Microphone are the
              most basic hardware requirements. The sole expense associated with computer-to-computer VoIP is the monthly
              Internet service provider subscription.

                      Do You Know?

                     •  Internet bots and viruses account for 62% of all website traffic, or roughly two-thirds.
                     •  Approximately 1.7 trillion euro dollars are spent on the internet.
                     •  It takes approximately 2 billion electrons to create an email.
                     •  Every year, online dating generates about $1 billion in revenue.


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