Telecommunication call management and monitoring system with voiceprint verification

摘要

Disclosed is a secure telephone call management system for authenticating users of a telephone system in an institutional facility. Authentication of the users is accomplished by using a personal identification number, preferably in conjunction with speaker independent voice recognition and speaker dependent voice identification. When a user first enters the system, the user speaks his or her name which is used as a sample voice print. During each subsequent use of the system, the user is required to speak his or her name. Voice identification software is used to verify that the provided speech matches the sample voice print. The secure system includes accounting software to limit access based on funds in a user's account or other related limitations. Management software implements widespread or local changes to the system and can modify or set any number of user account parameters.

主权项

1. A computer-implemented method for restricting access to a telephone call management system, said method comprising the steps of:
during a registration process by a user of said telephone call management system:
prompting the user to speak one or more predetermined keywords;receiving a first speech sample from said user;verifying said first speech sample is indicative of said one or more predetermined keywords using speaker independent voice recognition; andassociating said verified first speech sample with said user and storing said verified first speech sample in a database; and during each subsequent access attempt by said user to said telephone call management system to place a telephone:
prompting said user for a second speech sample;determining whether a voice characteristic of said second speech sample matches a voice characteristic of said verified first speech sample;allowing said telephone call to be completed when the voice characteristic of said second speech sample matches the voice characteristic of said verified first speech sample; andafter the allowing said telephone call to be completed, sampling voice data from said telephone call to detect if an unauthorized person has spoken based on the voice characteristic of the verified first speech sample.