Telecommunication call management and monitoring system with voiceprint verification

摘要: A secure telephone call management system is provided for authenticating users of a in an institutional facility. Authentication the accomplished by using personal identification number, biometric means, and/or radio frequency means. The includes accounting software capable limiting access to based on funds user's account, and implementing widespread or local changes system. monitors conversation detect presence first characteristic audio conversation, terminates if does not match second information user called party.