Many people say that the most relevant invention in communication is the mobile phone.
These days, mobile phones are not only used in making and receiving phone calls. It can be used, especially, for emergency purposes. Mobile phone users can also send emails, pictures, and other data for their office or home use. Nowadays, people can do anything if they have a mobile phone, even doing bank transactions or just needing to communicate to other people abroad. Mobile phones became a powerful communicating device.