Identify a secure end-to-end voice call

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United States of America Patent

PATENT NO 7852783
SERIAL NO

11608217

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
CISCO TECHNOLOGY INC170 WEST TASMAN DRIVE SAN JOSE CA 95134

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kohli, Sandeep Singh Fremont, US 13 61
Kumarasamy, Parameswaran San Jose, US 37 778
Narendra, Hosahalli Nanjappa San Jose, US 2 24
Parameswaran, Kavithadevi San Jose, US 16 350
Tasker, Michael Edric Pleasanton, US 16 217

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