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:
Jun. 29, 2010
Filed:
Feb. 24, 2005
Dennis Deans, Kanata, CA;
Lee Dilkie, Stittsville, CA;
Sonya G Fullarton, Ottawa, CA;
Radovan Prodanovic, Kanata, CA;
Dieter Schulz, Dunrobin, CA;
Dave Speirs, Ottawa, CA;
Jean-yves Patry, Gatineau, CA;
Dennis Deans, Kanata, CA;
Lee Dilkie, Stittsville, CA;
Sonya G Fullarton, Ottawa, CA;
Radovan Prodanovic, Kanata, CA;
Dieter Schulz, Dunrobin, CA;
Dave Speirs, Ottawa, CA;
Jean-Yves Patry, Gatineau, CA;
Mitel Networks Corporation, Ottawa, Ontario, CA;
Abstract
A system and method for providing early detection of encrypted signals within a secure connection for voice over Internet protocol (VoIP). The system and method includes a non-complex, in-band, and early encryption detector within the voice path. A transmitter sends out a known pattern. Based upon the received pattern, the receiver decides whether its encryption capabilities match up with those of the transmitter. If the capabilities do not match, then the receiver waits for the signalling message for the correct mode of operation. No packets are utilized until the receiver and transmitter encryption capabilities are matched.