Systems and methods for caller ID authentication, spoof detection and list based call handling

摘要

Systems and methods for caller id authentication, spoof detection and list based call handling are disclosed. The caller ID authentication is performed by an authentication device connected to the calling party telephone transmitting the source and destination telephone numbers of the call to an authentication server. The called party authentication device extracts the caller ID of the incoming call and transmits the caller ID of the caller and the telephone number of the called party to the authentication server. The authentication server analyzes the transmitted information from both devices and replies with the authentication status of the caller ID to the called party authentication device. Other embodiments are disclosed where the authentication server is not available and caller ID authentication is performed in a peer-to-peer manner. In another embodiment, the concepts of active and passive certification passwords are used to maintain the integrity of the system. Other embodiments allow for authenticating blocked caller ID's, reveling blocked caller ID's, VoIP implementations, legitimate caller ID spoofing, and placing a blocked caller ID on private white or black lists. Another embodiment combines the described caller ID authentication system within a call handling system utilizing internal, global and private white and black lists. Applications of caller ID authentication methodology to other forms of communication source address authentication, such as email, SMS, and postal mail are envisioned.

主权项

1. A method of caller ID authentication, comprising;
a. for telephone calls the caller party initiates to a called party,
I. the caller party authentication device determining the destination telephone number of the call,II. the caller party authentication device transmitting to the authentication server a calling status message containing the caller party telephone number and the call destination telephone number, b. for telephone calls the called party receives from a caller party,
I. the called party authentication device determining the source telephone number of the call from the caller ID, the caller ID not having been transmitted by the authentication server,II. the called party authentication device transmitting an authentication request message to the authentication server containing the source telephone number of the call and the telephone number of the called party, c. the authentication server determines the authenticity of the source telephone number within the authentication request message, the authenticity determination being,
I. authentic, if the source telephone number is determined to be accurate,II. spoofed, if the source telephone number is determined to be falsified,III. irresolute, if the source telephone number cannot be determined to be accurate or falsified.