A method of detecting robocalls includes generating at least one of an identification (ID) spoofing score, a number similarity score, and a call length prediction request for a telephone call request. The method further includes generating a robocall predictor score based at least in part on the call length prediction score and the ID spoofing score, and rejecting the telephone call request when the robocall predictor score indicates the telephone call request is invalid.

Aspects include systems and methods for screening robocalls from connecting to a target communication device by a robocall screening system. The robocall screening system may receive communications intended for the target communication device and, prior to making the connection, initiate a screening procedure which may involve playing an automated request to the originating device to enter additional information such as an additional digit (or digits), which would normally be achieved through a touchscreen, keypad, voice recognition system, etc. of a communication device. As robocalls are typically originated by an automated dialer that is not equipped or configured to respond to such an automated request, the robocalling device will fail to enter the requested additional information. If the additional information is not entered, the robocall screening system may terminate the communication as an attempted robocall, include routing the communication to a proxy receiving device for further processing.

A system and method for maintaining a grey list for controlling incoming calls from numbers on a telephone network. Information associated with previous calls received by the telephone is stored in the form of a grey list. The stored information includes an indication of whether each of the previously received calls passed a previous challenge. Based on the stored information, when an incoming call is received, a determination is made whether the incoming call corresponds to a call that passed a previous challenge. The incoming call connected to the telephone if the stored information indicates that the incoming call previously passed a challenge. An action is taken if the stored information does not indicate that the incoming call previously passed the challenge. The action may include blocking the call, allowing the call or providing a current challenge to the call.

Arrangements for automatically detecting bi-directional artificial intelligence (AI) communications and automatically negotiating (i.e., switching to alternative) direct digital communications.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for announcing and detecting automated conversation are disclosed. One of the methods includes initiating, over a natural language communication channel, a conversation with a communication participant using a natural language communication method that includes a dialogue of natural language communications. The communication participant is determined to be automated using a pre-defined adaptive interactive protocol that specifies natural language linguistic transformations defined in a sequence. The conversation can be transitioned to a communication method that is different form the natural language communication method in response to determining that the communication participant is automated.

Implementations described herein relate to methods, systems, and computer-readable media to label incoming phone calls. A method to label an incoming phone call includes detecting the incoming phone call associated with a caller identifier (ID), determining a location associated with the call, and analyzing a call header of the call to determine one or more call characteristics. The method further includes determining, based on the location and the call characteristics, if the location is spoofed and determining, based on the caller ID and the call characteristics, if an access network associated with the call is spoofed. The method further includes applying a trained machine learning model to determine whether the call is a robocall. The method further includes assigning a label to the call that indicates whether the call is a spoofed call or is the robocall and sending the label to a callee device associated with the call.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for announcing and detecting automated conversation are disclosed. One of the methods includes initiating, over a natural language communication channel, a conversation with a communication participant using a natural language communication method that includes a dialogue of natural language communications. The communication participant is determined to be automated using a pre-defined adaptive interactive protocol that specifies natural language linguistic transformations defined in a sequence. The conversation can be transitioned to a communication method that is different form the natural language communication method in response to determining that the communication participant is automated.

Disclosed herein are systems and methods for determining whether an automated telephone call has been answered by a particular user, a different person, or a voicemail service. In response to determining that the call has been answered by the user, a different person, or a voicemail service, the systems and methods can output different respective messages, initiate messaging to the user via alternate communication paths, or perform other actions.

A system and method for maintaining a grey list for controlling incoming calls from numbers on a telephone network. Information associated with previous calls received by the telephone is stored in the form of a grey list. The stored information includes an indication of whether each of the previously received calls passed a previous challenge. Based on the stored information, when an incoming call is received, a determination is made whether the incoming call corresponds to a call that passed a previous challenge. The incoming call connected to the telephone if the stored information indicates that the incoming call previously passed a challenge. An action is taken if the stored information does not indicate that the incoming call previously passed the challenge. The action may include blocking the call, allowing the call or providing a current challenge to the call.

A method for managing incoming voice calls, the method comprising: receiving audio of a voice call; determining whether the audio of the voice call is computer-generated; and terminating the voice call if it is determined that the audio of the voice call is computer-generated.