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

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. the authentication server notifies the called party authentication device of the caller party telephone number as indicated within the calling status message,
• c. 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 determines the authenticity of the source telephone number by comparing it to the caller party telephone number received from the authentication server, the authenticity determination being,
• i. authentic, that is the source telephone number is determined to be accurate if it matches the caller party telephone number,
• d. if the called party authentication device does not receive a caller party telephone number from the authentication server for a telephone call the called party receives from a caller party,
• I. the called party authentication device determines 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 transmits an authentication request message to the authentication server containing the source telephone number of the call and the telephone number of the called party,
• III. the authentication server determines the authenticity of the source telephone number within the authentication request message, the authenticity determination being,
• a. authentic, if the source telephone number is determined to be accurate,
• b. spoofed, if the source telephone number is determined to be falsified,
• c. irresolute, if the source telephone number cannot be determined to be accurate or falsified.

A method of caller ID authentication, comprising;

• a. the authentication device of the spoofed party, which desires to have its caller ID legitimately spoofed, transmits a permission message to the authentication server with the phone number of the spoofed party and the telephone number of the spoofing party who is given permission to spoof,
• b. for telephone calls the spoofing party initiates to a called party with a spoofed source telephone number,
• I. the spoofing caller party authentication device determining the destination telephone number of the call,
• II. the spoofing caller party authentication device transmitting to the authentication server a calling status message containing, the spoofing party telephone number, the spoofed caller party telephone number and the call destination telephone number,
• c. 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,
• 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,
• d. 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.