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:
May. 29, 2012
Filed:
Oct. 17, 2005
Applicant:
Daryl Gazzard, Alpharetta, GA (US);
Inventor:
Daryl Gazzard, Alpharetta, GA (US);
Assignee:
AT&T Mobility II LLC, Atlanta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/16 (2006.01); G06F 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
An authentication and validation architecture utilizing a P-CSCF (proxy-call session control function) service to validate a source IP address against a registered contact IP address upon receiving an initial request for a dialog or a standalone request (except REGISTER) from a registered user. This provides a security measure to prevent IMS (IP multiemdia subsytem) identity spoofing, when SIP security (IPsec) access security is not enabled, or not used, between the user equipment (UE) and P-CSCF service.