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:
Sep. 01, 2020
Filed:
Mar. 27, 2017
Applicant:
British Telecommunications Public Limited Company, London, GB;
Inventors:
Assignee:
British Telecommunications Public Limited Copmany, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 36/00 (2009.01); H04W 36/30 (2009.01); H04W 76/19 (2018.01); H04W 76/30 (2018.01); H04W 36/16 (2009.01); H04W 48/06 (2009.01); H04W 48/16 (2009.01); H04W 84/12 (2009.01); H04W 92/02 (2009.01);
U.S. Cl.
CPC ...
H04W 36/0022 (2013.01); H04W 36/0085 (2018.08); H04W 36/165 (2013.01); H04W 36/30 (2013.01); H04W 48/06 (2013.01); H04W 48/16 (2013.01); H04W 76/19 (2018.02); H04W 76/30 (2018.02); H04W 84/12 (2013.01); H04W 92/02 (2013.01);
Abstract
A mobile device capable of connecting to a voice service using Voice over LTE (VoLTE) via a cellular network and Voice over Wi-Fi (VoWiFi) via a wireless local area network is connected to VoWiFi and arranged to receive notifications from a wireless access point when the voice service via VoWiFi is disrupted and to disconnect from VoWiFi and connect to VoLTE to maintain the voice service. The mobile device is operable to test the connection to the cellular network and if the cellular network connection is insufficient to support VoLTE, the mobile device ignored the notification and remains connected to VoWiFi.