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. 12, 2019
Filed:
Aug. 27, 2015
Verizon Patent and Licensing Inc., Arlington, VA (US);
Christian D. Lair, Arlington, TX (US);
Amol Tuli, Dublin, CA (US);
Khalil M. Kajani, Carrollton, TX (US);
Verizon Patent and Licensing Inc., Basking Ridge, NJ (US);
Abstract
A method includes receiving, from an external presence server at a proxy presence device, a presence status request for presence information associated with a user device in a home carrier network. The method includes sending the presence status request to an internal presence server in the home carrier network. The method also includes receiving the presence status of the user device and storing the presence status of the user device with a time to live (TTL) in an associated database. The presence status is sent to the external presence server. The method includes receiving at least one subsequent request for the presence status of the user device within a time window of the TTL. The method also includes sending the presence status within the time window of the TTL without sending another presence status request to the internal presence server.