System and method for preventing robocall voicemail deposit
AssigneeT-Mobile USA, Inc.
InventorHomer Nicolas B. Filart
Life of this patent
Estimating the term…
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.
Claims15
A method for preventing an unanswered call from depositing a voicemail, the method comprising:
- determining whether call redirection history information is present in an attribute of the unanswered call to a user equipment (UE);
- and
- upon determining that the call redirection history is present in the attribute;
- determining whether a visited network address of the UE is a home global title address of the UE;
- determining that the UE is in a home network of the UE based on the visited network address of the UE;
- and
- preventing the unanswered call from depositing a voicemail.
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:
- determining whether call redirection history information is present in an attribute of an unanswered call to a user equipment (UE);
- upon determining that the call redirection history is present, determining that the UE is not in a home network of the UE based on a visited network address of the UE;
- announcing a set of numbers to a caller of the unanswered call;
- requesting the caller to enter a sequence of numbers from the announced set of numbers;
- and
- upon determining that the caller failed to enter the sequence of numbers correctly, preventing the unanswered call from depositing a voicemail.
A system configured to prevent an unanswered call to a user equipment (UE) from depositing 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 determination module configured to determine whether call redirection history information is present in an attribute of the unanswered call, wherein the determination module is further configured to, upon determining that the call redirection history information is present in the attribute:
- determine whether a visited network address of the UE is a home global title address of the UE;
- and
- determining that the UE is in a home network of the UE based on the visited network address of the UE;
- 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 or upon determining that the UE is in the home network.
Dependencies are inferred from the claim text.