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:
Mar. 24, 2020
Filed:
Jul. 17, 2015
Avaya Inc., Santa Clara, CA (US);
Mohan Vinayak Phadnis, Pune, IN;
Sreekanth Subrahmanya Nemani, Pune, IN;
Avaya Inc., Santa Clara, CA (US);
Abstract
During a Session Initiation Protocol dialog setup, the user agent sends an INVITE message with an SDP offer to the conference controller, and the conference controller provides to a media gateway a unique session identifier, a unique conference identifier, and optionally at least one of feature information and/or policy information. If the conference controller restarts, the media gateway may provide the conference controller the unique session identifier, the unique conference identifier, and the optional feature and/or policy information. The conference controller may then generate an out-of-dialog SIP REFER message that includes the unique session identifier and the unique conference identifier and provide the message to the user agent. The user agent, upon receiving the REFER message, may identify a dialog needing replacing, and may provide the conference controller a new INVITE message that allows the conference controller to reconstruct the SIP dialog and optional feature and/or policy information if needed.