A ringtone or ring tone is the sound made by a telephone to indicate an incoming call or text message. Not literally a tone nor an actual (bell-like) ring anymore, the term is most often used today to refer to customizable sounds used on mobile phones.
ONLINE RINGTONE CREATION UTILITY AND SERVICE
Mobile ringtone search through query by humming
Creating and Purchasing Ringtones
CTIA Entertainment: Qpass to manage Skype ringtones
Ringtones in our modern world: Personal significance is encoded automatically by the human brain
Please silence your cell phone: Your ringtone captures other people's attention
Trends in mobile services in Finland 2004‐2006: from ringtones to mobile internet
Emotional Responses to Single-Voice Melodies: Implications for Mobile Ringtones
Emotional responses to single-voice melodies: implications to mobile ringtones. Manuscript submitted for publication
Personal significance is encoded automatically by the human brain: an event‐related potential study with ringtones