hangout is one application which is google product.it has been made for communication purpose here you can do video calling,voice calling as well as you can do chat with another.
hangout also used for online webinar.it is very popular product same like Whats app.here you can setup video meeting with different people as well.
what is the use of hangout?
hangout app is used for video calling, chat,voice called and main point is no need of any number required in this app.here you can make account by using any your gmail id.after that you can use this app.voice quality and video quality is attractive of this app.
you need to download this from play store. after downloading this app you need to install this app.when will open this app its asking about gmail.so choose you gmail id and wait some second and its make your account automatically.
how to do chat,video ,voice in hangout application.
after doing all above steps you can see one + symbol.click on that symbol where you can find your friends also. search gmail account and send message and he and she accept you request further you can chat more.
if you want to do video call or voice call for that you can see two option available at right side corner choose according your need that you want to do with your friends.
finally we can say hangout app is also best application for communication with people via online just like whatsapp application.