U Mobile

To subscribe Colour Tones: type ON CT then SMS to 28118 or,
Dial *118# and press the call button, then select "Colour Tones" and "Subscribe"

To download Colour Tones: type CT[space]{code} and SMS to 28118 or,
Dial *118*3*2*{code}# and press the call button.

Click here for Maxis or DiGi download instructions.