XXI century gave humanity the technology that allows you to choose the most convenient and most beneficial type of communication for every individual. There are so many of them now: phone, Skype, SMS, MMS, social networks, email and more. All of them allow a person to maintain communication when it’s impossible to see the other person. Twenty years ago, for example, we could not imagine that there would be social networks that would allow us to communicate with people from other parts of the planet. Or have a personal e-mail box that lets you instantly share messages with the right person. The phone has become an integral component of the life for everyone: looking at the variety of smartphones, each of which has a camera, wi-fi, internet, etc., one does not even think that once the world existed without such features. A similar situation with text messages (SMS) that costs a penny, but allows people to communicate with people anywhere in the world. Of course, you can use all the benefits of modern civilization, but what type of communication do you prefer?