And Verizon still continues to increase its presence on the mobile ringtones market since it was formed in 2000.Although other formats, such as MIDI or mp3, are usually supported - they must be downloaded to the phone before could be used as cell phone ringtones.Another recent innovation in this technological development is the singtone, whereby the voice of every mobile owner could be recorded to some popular track and then ste automatically to sound in key with the basic recorded melody.The most popular non-musical free mp3 ringtones are - a crying baby - different animal sounds such as the moo of a cow or the barking of a dog - other funny voices and sound effects.They are also extremely attractive and cost-effective way to personalize each mobile phone.
