35. The system according to claim 11 , wherein said bit-stream similarity evaluation module is adapted to calculate two or more progressive similarity scores each with respect to a different instant during the progress of the real-time conversational media session, wherein each of said scores corresponds to the similarity between the significant attributes associated with the real-time conversational media session data available at the corresponding instant and the reference data, and said evaluation module is adapted to evaluate progressive similarity between the real-time conversational media session data and the reference data based upon the two or more progressive similarity scores.
35. The system according to claim 11 , wherein said bit-stream similarity evaluation module is adapted to calculate two or more progressive similarity scores each with respect to a different instant during the progress of the real-time conversational media session, wherein each of said scores corresponds to the similarity between the significant attributes associated with the real-time conversational media session data available at the corresponding instant and the reference data, and said evaluation module is adapted to evaluate progressive similarity between the real-time conversational media session data and the reference data based upon the two or more progressive similarity scores. 37. The system according to claim 35 , wherein said bit-stream similarity evaluation module is adapted to conclude based upon the two or more progressive similarity scores whether the real-time conversational media session and the reference data item are similar, dissimilar or that further progressive similarity scores are necessary to conclude similarity or dissimilarity.