Patent Number: 7,103,310

Title: Method of restricting the use of a radio terminal and an associated restriction device

Abstract: A request to access the network sent by a terminal is intercepted and a selective restriction criterion is evaluated on the basis of parameters relating to the intercepted access request. A radio signal is sent to jam an acknowledgment signal sent by the network in response to the access request if the selective restriction criterion is satisfied.

Inventors: Lucidarme; Thierry (Montigny-le-Bretonneux, FR), Lescuyer; Pierre (Montigny-le-Bretonneux, FR)

Assignee: Nortel Networks Limited

International Classification: H04K 3/00 (20060101)

Expiration Date: 9/05/02018