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. 06, 2016
Filed:
May. 05, 2008
Navjot Singh, Denville, NJ (US);
Akshay Adhikari, Santa Clara, CA (US);
Yu-sung Wu, West Lafayette, IN (US);
Sachin Garg, Bangalore, IN;
Navjot Singh, Denville, NJ (US);
Akshay Adhikari, Santa Clara, CA (US);
Yu-Sung Wu, West Lafayette, IN (US);
Avaya Inc., Basking Ridge, NJ (US);
Abstract
An apparatus and method for detecting potentially-improper call behavior (e.g., SPIT, etc.) are disclosed. The illustrative embodiment of the present invention is based on finite-state machines (FSMs) that represent the legal states and state transitions of a communications protocol at a node during a Voice over Internet Protocol (VoIP) call. In accordance with the illustrative embodiment, a library of FSM execution profiles associated with improper call behavior is maintained. When there is a match between the behavior of a finite-state machine during a call and an execution profile in the library, an alert is generated.