How Ringtones Work with Cell Phones

In order for a ringtone to be made audible by the cell phone, the phone has an internal chip system composed of capacitors, inductors, and signal processors that emit an audible sound (the ringtone) once a certain receive-call signal with a particular wavelength is detected. This wavelength requires that the amplitude and sinusoidal variations of the incoming signal to be of type RF, which is also known as radio frequency.

Once the ringtone is played, the chip calls the portion of memory that the ringtone is stored in. Like your computer when you play an MP3 or other music file off your hard drive, the mechanism by which a ringtone is accessed is similar. These days, many phones come with additional flash memory cards that allow ringtones and other files to be stored on it. Ringtones can thus be stored on the memory chip that is embedded into the phone, or may be stored in a flash memory location. In either case, ringtones are stored and played in a similar fashion that files are processed and executed in computers, except that the storage mediums are different.

In order to receive ringtones, mobile phones use advanced wireless technology via SMS messaging. When you are receiving your ringtones, your phone is in a data-receive state and waits for a signal to be sent by the ringtone service provider. Depending on the type of phone you have, the data rates by which these ringtones are transmitted vary significantly. On newer phones that support wider bands, data transfer rates for ringtones are sent exponentially faster than those phones that support smaller bands.