System and method for preventing robocall voicemail deposit
AssigneeT-Mobile USA, Inc.
InventorHomer Nicolas B. Filart
Life of this patent
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Abstract
Systems and methods for preventing a robocall from leaving a voicemail are described. When an incoming call without a history information header (HIH) destined for a subscriber is detected, the incoming call is prevented from leaving a voicemail if the subscriber does not answer the incoming call. If the incoming call has the HIH, additional determination process based on a visited network address of the subscriber is performed to determine whether the incoming call is to be prevented from leaving a voicemail.
Claims20
A method for processing an unanswered call, the method comprising:
- receiving the unanswered call at a voicemail system associated with a user equipment (UE);
- receiving, by the voicemail system, a voicemail pilot associated with the unanswered call;
- determining, by the voicemail system, that a call redirection history is absent from the voicemail pilot;
- and
- preventing the unanswered call from depositing a voicemail with the voicemail system based at least in part on the voicemail pilot not including the call redirection history.
A non-transitory computer storage medium storing computer-readable instructions executable by a computer, that when executed by the computer, cause the computer to perform operations comprising:
- receiving an unanswered call, the unanswered call forwarded from a user equipment (UE);
- receiving an attempt to deposit a voicemail with a voicemail system, the attempt associated with the unanswered call and the voicemail system associated with the user equipment;
- and
- preventing the unanswered call from depositing a voicemail based on at least one of:
- determining the attempt does not contain a call redirection history;
- determining the attempt contains an invalid call redirection history;
- or
- determining the attempt includes a first network address not associated with a network of the UE.
A system configured to determine whether an unanswered call to a user equipment (UE) permitted to deposit a voicemail, the system comprising:
- one or more processors;
- memory communicatively coupled to the one or more processors, the memory comprising a plurality of modules communicatively coupled to each other, the plurality of modules comprising:
- a communication module configured to receive at least an attribute and a connection attempt associated with the unanswered call;
- a determination module configured to determine whether call redirection history information is present in the attribute;
- and
- a prevention module configured to prevent the unanswered call from depositing a voicemail upon determining, by the determination module, that the call redirection history information is not present.
Dependencies are inferred from the claim text.