Communication networks and associated methods are disclosed that provide a content sharing service through multimedia ringback tones. The communication network comprises a network node and a multimedia ringback system. The network node receives a call from a calling party to a subscriber of the content sharing service, and routes the call to the multimedia ringback system. The multimedia ringback system identifies a multimedia ringback tone for the call where the multimedia ringback tone includes a message prompting the calling party to share content of the subscriber, and provides the multimedia ringback tone to the calling party. The multimedia ringback system then receives a request for the content indicated in the multimedia ringback tone from the calling party, and initiates the transfer of the content to the calling party responsive to the request.