Patent ID: 6650737
Filing Date: 2003-11-18
Classification: G10L,H04M

Abstract:
In a telecommunications network, a method of authenticating for a first user of a first voice message system an identity of a second user of a second voice message system, comprising:receiving at the first voice message system multiple voice messages, at least one of which is an original voice message known to be received from the second user and having a voice message address of the second user; extracting from the original voice message the voice message address of the second user and a voice clip comprising a predetermined voice segment of the original voice message; encoding the voice clip into an original voice print; storing in a voice print file the original voice print in association with the voice message address of the second user; receiving a questionable voice message addressed to the first user from the voice message address of the second user; extracting from the questionable voice message address the voice message address of the second user and a new voice clip; encoding the new voice clip into a new voice print; searching the voice print file for the voice message address of the second user; retrieving the original voice print associated with the voice message address of the second user; comparing the original voice print and the new voice print; and returning to the first user an authenticating response if the original voice print and the new voice print are substantially the same.