[VOIPSEC] Request: SRTP Call Setup Flow Diagram

[M Rizal B Azmi]

Hi all,

Does anybody have the diagram or link to how SRTP operates in the call setup and teardown process? Its the one showing the message flows such as INVITE, ACK, OK, and so on for SIP. I assume that it would be similar to a normal SIP call but I do not have much of an idea how SRTP fits into all this. 

If you don't understand what I'm saying, here's a link to the SIP message flow:

http://server3.uploadit.org/files/leadaxer-SIP.jpg

Thanks & Regards,
Rizal

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