Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate
2006-12-07
2010-12-14
Moore, Jr., Michael J (Department: 2467)
Multiplex communications
Diagnostic testing
Determination of communication parameters
C370S389000, C370S392000, C370S465000
Reexamination Certificate
active
07852783
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.
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Kohli Sandeep Singh
Kumarasamy Parameswaran
Narendra Hosahalli Nanjappa
Parameswaran Kavithadevi
Tasker Michael Edric
Cisco Technology Inc.
Moore, Jr. Michael J
Stolowitz Ford Cowger LLP
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