I have a cube device 4300 series and need to configure for encrypted calls (signaling and media). I believe I need to add the sec license SL-4330-SEC-K9 to be able to do media and signaling encryption?
I did see a doc that said you only needed the sec license if you have the IOS with NPE, which doesn't make sense to me.
My IOS is the isr4XXX-universalk9.X.X.X.SPA.bin, not the NPE version