Automatic identification, authentication and ongoing verification of the identity of the caller in voice transmissions through generic communications networks.

摘要

automatic identification, authentication and identity continuous caller in voice transmissions through generic communications networks verification. The commercial development of services using telephone networks as support transmission has been limited traditionally by the inability to properly identify the caller, continuously, with legal validity and without incurring excessive complexity or need for excessive additional infrastructure. The purpose of the invention is capable of identifying the caller and assert said identification transparent and continues throughout the communication way, transparent, automatic and independent of the type and performance of the communications network. To this end, is inserted in the audio signal (S.1) a sequence identification data (S.2), stored on a smart card (2) by nonlinear steganographic techniques insertion perceptually inaudible components (T2 , T.4 and T.5), which prevent audible sequence, alterable or removable.