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                                                             Inbox of Gmail
                 Video Conferencing

                 You use telephones and mobiles to talk to your friends and relatives. With the advancement
                 in technology, you can now see the person with whom you are talking. This technique of
                 watching the person while talking to them is called video conferencing. In video conferencing,
                 there can be two or more people at different locations simultaneously talking to each other
                 on both audio as well as video. For video conferencing, you should be connected to the
                 Internet. In addition, you need to have a webcam and a microphone connected to your
                 computer/laptop.
                 Video conferencing is very useful. Representatives of companies located at different places can
                 get in touch with each other face to face by using video conferencing. It has promoted e-learning
                 as knowledge of teachers and lecturers living in cities can be brought to remote areas. In the
                 Medical field, the surgeons can guide surgeries happening in different locations of the world
                 from their  own  hospital.  Most of the  online chat  service providers  give the  facility of  video
                 conferencing. There are software also available which allow you to do video conferencing. Some
                 popular software are Google Meet, TrueConf, Meetings.io, etc.
                 Voice-over-Internet Protocol (VoIP)

                 Voice-over-Internet Protocol (VoIP) is a technology that gives a calling facility over the Internet.
                 This service is used to transfer voice, fax, and multimedia content. VoIP is available on smartphones,
                 personal computers, laptops and other hardware devices that can access the Internet.

                 The use of VoIP has many advantages like:
                                                                 Clickipedia
                    Less  communication and infrastructure
                    cost
                    It  can  be  used on  various  devices like   The first VoIP service was developed in 1973 by
                    personal  computers,  laptops,  mobiles,      Danny Cohen. He named this service Network
                    etc.                                          Voice Protocol (NVP). The commercial use of
                    VoIP to VoIP calls are generally free.        VoIP started as late as 2004.





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