Blip-9 is the predicessor to Blink-182
A series of Blips and Blinks at bitrates of 9kb/sec and 182kb/sec, respectively, produce overtones which harmonically vibrate at a frequency high enough for an individual to hear in noisy environments. The technology was first lab tested and in it's Beta form was known as Blip-9. The technology was later perfected and introduced for the first time as Blink-182 in the 8700 series Blackberries. The combination of a high-end speaker and Blink-182 technology makes the audible ring of any tone quite clear on the 8700.
...any other questions?