The first commercial mobile ring tones created by a Finnish mobile operator in 1998. This ringtone can be downloaded from the Internet and in RTTTL (Ring Tone Text Transfer Language) format in which a simple text-based format that is used to make music. This tone can be downloaded to the phone via infrared, Bluetooth and SMS.
The Monophonic melodies were developed based on RTTTL. A very simple ring tones, is found in the hands of the older sets. A simple song melodies generated by the orderly arrangement of notes on different frequencies, it can produce only one sound at a time.
Then came polyphonic ringtones melody called a superior, which can produce 16 separate notes at any given time. The songs sound like real music. Most modern phones can play these ringtones.
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