Have you gone through the below document
I gone through the document and all the pre-requisites are ready except the DNS. Will the service become enable automatically or any manual settings we need to do.
Thanks in Advance.
Please take a screenshot of the Server certificate page in Expressway E and post it here. What version are you running on the Expressway?
What do you mean by “except the DNS.”? Can you please elaborate.
If not viewed already this post could be of interest to you. https://community.cisco.com/t5/unified-communications/expressway-and-support-for-acmev2/td-p/3943771