Mechanism to allow authentication of terminated SIP calls

• US 20030014668A1
• Filed: 07/13/2001
• Published: 01/16/2003
• Est. Priority Date: 07/13/2001
• Status: Active Grant

• Current Assignee: WSOU Investments, LLC (WSOU Holdings, LLC)
• Original Assignee: Nokia Corporation
• Inventors: Faccin, Stefano, Le, Franck
• Granted Patent: US 7,484,240 B2
• Time in Patent Office: Days
• US Class Current: 713/201
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04M 7/00 Arrangements for interconnection between switching centres
• CPC Class Codes: H04M 7/0078 Security; Fraud detection; Fraud prevention
• CPC Class Codes: H04W 12/069 using certificates or pre-shared keys
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00

Abstract

The invention proposes a method of performing authentication of a subscriber during a subscriber equipment terminated call, comprising the steps of sending a session invitation message (S4, S5) to the subscriber equipment, the session invitation message including authentication information (AuthData1), and performing an authentication procedure in the subscriber equipment by using the authentication information. The invention also proposes a corresponding network system, network control element and subscriber entity.

Claims