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US Patent 11172002 System and method for preventing robocall voicemail deposit

Patent 11172002 was granted and assigned to T-Mobile US on November, 2021 by the United States Patent and Trademark Office.

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent

Patent attributes

Patent Applicant
T-Mobile US
T-Mobile US
Current Assignee
T-Mobile US
T-Mobile US
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
11172002
Date of Patent
November 9, 2021
Patent Application Number
20190730
Date Filed
July 30, 2019
Patent Primary Examiner
‌
Tri H Phan
Patent 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.

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