The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 09, 2021
Filed:
Jul. 30, 2019
Applicant:
T-mobile Usa, Inc., Bellevue, WA (US);
Inventor:
Homer Nicolas B. Filart, Renton, WA (US);
Assignee:
T-Mobile USA, Inc., Bellevue, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04W 8/02 (2009.01); H04W 8/26 (2009.01);
U.S. Cl.
CPC ...
H04L 65/1079 (2013.01); H04L 65/1006 (2013.01); H04L 65/1073 (2013.01); H04W 8/02 (2013.01); H04M 2203/2027 (2013.01); H04W 8/26 (2013.01);
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.