User equipment validation in an IP network
US8191116B1 · kind B1 · utility
238Cited by
10References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 17, 2005 |
| Grant date | May 29, 2012 |
| Priority date | — |
| Expiry date | Jan 13, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/069
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.