A system is provided for verifying an identity of a calling party. The system includes a storage that stores voice sample information in association with information that identifies an individual. The system also includes a receiver that receives, from a communications platform called by the calling party, a request to authenticate the identity of the calling party as the individual, using a digital audio sample packetized according to voice over internet protocol and obtained from the calling party during the call. Additionally, the system includes a processor that compares the digital audio sample to the voice sample information to authenticate the identity of the calling party as the individual.