Natural fiber-containing cement compositions for cementing wellbores in high stress and high temperature environments. The calling party generates and stores an originating profile that contains Ringback Tones or Ringback messages associated with a Ringback Tone subscriber. Each compressed image frame is one of: i) an independent frame from which an image frame can be recovered utilizing only the independent frame; and ii) a dependent frame from which the image frame can only be recovered utilizing both the dependent frame and an independent frame preceding the dependent frame in the sequence.