A secure telephone call management system is provided for authenticating users of a telephone system in an institutional facility. Authentication of the users of the telephone call management system is accomplished by using a personal identification number, biometric means, and/or radio frequency means....http://www.google.fr/patents/US20040029564?utm_source=gb-gplus-shareBrevet US20040029564 - Telecommunication call management and monitoring system
Telecommunication call management and monitoring system
Numéro de demande: 10/215,367 Numéro de publication: US 2004/0029564 A1 Date de dépôt: 8 août 2002 Brevet délivré: US7333798 ( Date de délivrance 19 févr. 2008)
