A ringtone or ring tone is the sound made by a telephone The telephone is a telecommunications device that transmits and receives sound, most commonly the human voice. It is one of the most common household appliances in the developed world, and has long been considered indispensable to business, industry and government. The word "telephone" has been adapted to many languages and is widely to indicate an incoming call or text message Text messaging, also known as "texting", refers to the exchange of brief written messages between mobile phones over cellular networks. While the term most often refers to messages sent using the Short Message Service , it has been extended to include messages containing image, video, and sound content (known as MMS messages). Individual. Not literally a tone A sine wave is characterized by its frequency — the number of cycles per second, or its wavelength — the distance the waveform travels through its medium within a period, and the amplitude — the size of each cycle. A pure tone has the unique property that its waveshape and sound are changed only in amplitude and phase by linear acoustic, the term is most often used today to refer to customizable sounds used on mobile phones A mobile phone or mobile is an electronic device used for mobile telecommunications (mobile telephone, text messaging or data transmission) over a cellular network of specialized base stations known as cell sites. Mobile phones differ from cordless telephones, which only offer telephone service within limited range, e.g. within a home or an office,.
