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:
Dec. 14, 2010
Filed:
Dec. 07, 2006
Michael Edric Tasker, Pleasanton, CA (US);
Hosahalli Nanjappa Narendra, San Jose, CA (US);
Parameswaran Kumarasamy, San Jose, CA (US);
Sandeep Singh Kohli, Fremont, CA (US);
Kavithadevi Parameswaran, San Jose, CA (US);
Michael Edric Tasker, Pleasanton, CA (US);
Hosahalli Nanjappa Narendra, San Jose, CA (US);
Parameswaran Kumarasamy, San Jose, CA (US);
Sandeep Singh Kohli, Fremont, CA (US);
Kavithadevi Parameswaran, San Jose, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
We describe a system embodiment comprising generating a Secure Real-Time Transport Protocol (SRTP) encapsulated packet and including a secure media indicator into the SRTP encapsulated packet. The method further comprises inserting the SRTP encapsulated packet into an SRTP voice stream associated with an active call between a source and a destination endpoint and indicating an end-to-end secure call between the source and destination endpoints responsive to the secure media indicator. And we describe a method embodiment comprising transmitting a request message from a source endpoint to a destination endpoint participating in an active call and setting a secure media flag in the request message at each node in a signaling path associated with the active call. The method further comprises returning a response message from the destination endpoint to the source endpoint responsive to the request and indicating an end-to-end secure call between the two endpoints.