Phone call screening (blocage d'appel numerique)

Details Phone call screening (blocage d'appel numerique) Phone call screening (blocage d'appel numerique)

H - Electricity

04

M

H04M 1/663 (2006.01) H04M 1/57 (2006.01)

Patent

CA 2359093

A phone call screening unit that provides a method for blocking unwanted telephone calls. The system uses simple dial source number block as the primary characteristic for blocking, as opposed to voice recognition.

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