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, 2013
Filed:
Aug. 09, 2006
Srikrishna Kurapati, Richardson, TX (US);
Sachin Purushottam Joglekar, Richardson, TX (US);
Venkatesan Iyengar Prasanna, Dallas, TX (US);
Satyam Tyagi, Richardson, TX (US);
Guru Thodime, Richardson, TX (US);
Pravin Khandelwal, Richardson, TX (US);
Chandrasekhar Manchenella, Richardson, TX (US);
Mukesh Kumar Singh, Hyderabad, IN;
Raghavendra Venkata Thodime, Richardson, TX (US);
Srikrishna Kurapati, Richardson, TX (US);
Sachin Purushottam Joglekar, Richardson, TX (US);
Venkatesan Iyengar Prasanna, Dallas, TX (US);
Satyam Tyagi, Richardson, TX (US);
Guru Thodime, Richardson, TX (US);
Pravin Khandelwal, Richardson, TX (US);
Chandrasekhar Manchenella, Richardson, TX (US);
Mukesh Kumar Singh, Hyderabad, IN;
Raghavendra Venkata Thodime, Richardson, TX (US);
Avaya Inc., Basking Ridge, NJ (US);
Abstract
The present invention provides a system, method and apparatus for providing network level and nodal level vulnerability protection in VoIP networks by receiving a communication, filtering the received communication using three or more stages selected from the group comprising a media protection and filtering plane, a policy based filtering plane, a signature based filtering plane, a protocol anomaly detection and filtering plane and a behavioral learning based filtering plane, and either allowing or denying the received communication based the filtering step. The stages are applicable to one or more protocols including SIP, IMS, UMA, H.248, H.323, RTP, CSTA/XML or a combination thereof. In addition, the stages can be implemented within a single device or are distributed across a network (e.g., SIP network, a UMA network, an IMS network or a combination thereof).