Abstract: A system and method of delivering an advertisement as a ringback tones (RBT) for telephone, mobile phone, or voice over internet protocol (VOIP) systems may include providing data exchanging means between a telephone exchange system or a mobile switching center through use of an web service coded in extendable markup language (XML), simple object access protocol (SOAP), or binary data for playing of the advertisement as ringback tones, reconciliation against an advertising campaign, and payment to subscribers of the advertisement as ringback tones. A subscriber may sign up for delivery of the advertisement as ringback tones, may choose one or more types of the advertisement as a ringback tone, and may place and enable the one or more types of the advertisement as a ringback tone in a jukebox or a playback lineup. The subscriber can store any of the advertisements as ringback tones, whereby calling parties placing calls to the subscriber hear the advertisements as a ringback tone.