Razz

Razz, Inc. is a global publisher of entertainment software and services for mobile phones and other voice communication platforms. The Company's proprietary audio distribution channel, the Razz, enables consumers to mix sound content into their phone conversations and onto their personal web pages. Leveraging this patent-pending technology, mobile content distributors can now offer their consumers a new voice-centric entertainment service, and content owners can further monetize their branded properties. With the company's flagship mobile handset application, the Razz Player, consumers can interject stored sound clips into live conversations, outgoing messages and voicemail. In short, the Razz provides a complete publishing and distribution solution for this new category of media: "in call entertainment".
More at: http://www.razz.com/