Effective "Call Discrimination" is an essential pre-requisite for achieving service transparency, using approaches such as DSP-based tone detection and analysis. Study Group 16 of ITU-T has done a great deal of work on developing standards for transporting multimedia — including voice, fax, modem data and newer content types such as video-over the converged network.
This white paper will review the different proposed approaches to call discrimination and service transparency, the pros and cons for equipment vendors and network operators, and the current status within the major standards organizations — ITU and IETF.
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