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                  Video Conferencing

                  In the past, we used telephones and mobile phones to talk to our friends and relatives. With

                  advancements in technology, we can now see the person we're talking to. This is called video
                  conferencing. In video conferencing, two or more people in different locations can communicate
                  using both audio and video. To use video conferencing, you need an internet connection, a
                  webcam, and a microphone connected to your computer or laptop.
                  Video conferencing is a very helpful tool. It allows people in different places to meet face-to-face.
                  It has improved e-learning by letting teachers in cities share their lessons with students in far-off
                  areas. In healthcare, doctors can guide surgeries happening in other hospitals without being there

                  in person. Many online chat services offer video conferencing, and there are special programs for
                  it. Popular ones include Zoom, Google Meet, Skype, Microsoft Teams, and GoToMeeting.
                  Voice-over-Internet Protocol (VoIP)

                  Voice-over-Internet Protocol (VoIP) is a technology that allows you to make calls over the internet.
                  It is primarily used for voice communication but can also transfer voice, fax, and multimedia
                  content. VoIP is available on smartphones,  personal computers,  laptops,  and  other  internet-
                  enabled devices.

                  VoIP offers many advantages, such as:
                      Low operational costs.

                       Reduced communication and infrastructure expenses.
                      Compatibility with various devices like personal computers, laptops and mobiles.

                      VoIP to VoIP calls are generally free.
                   Clickipedia


                    Danny Cohen developed the first VoIP service in 1973, calling it Network Voice Protocol
                    (NVP). VoIP began to be used commercially in 2004.


                  However, VoIP services also have some disadvantages, including:

                      Potential data loss.


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