Secure calls between cucm and cms 3.0.1

[akram.root]

Hello all,

I would like to secure calls between cucm 12.5 and cms 3.0.1 .

And secure calls between cucm and cisco expressway c.

How can i do that ?

Best regards 

Akram

[Roger Kallberg]

For Expressway B2B look at this document. https://www.cisco.com/c/en/us/support/docs/unified-communications/expressway/213864-configure-business-to-business-audio-and.html