I am testing some scenarios between Skype for Business clients. SRTP was disabled and I am trying to enable it.
I have changed the "EncryptionLevel" setting in CsMediaConfiguration to "RequireEncryption" (it was set to donotsupportencryption before). I have restarted FE
server, logged out and logged in the clients as well but still do not see "a=crypto" in the SDP messages.
Is there any other configuration required to accomplish the same (enable encryption/SRTP in P2P calls within LAN)?
You dont have to enable encryption for a media call between skype users within a LAN. It's already enabled by default. You can use wireshark or netmon tool to check it.