I have deployed Expressway C-E (8.9) with CUCM 11.5. and I'm trying to register one 8841 from Internet using MRA feature and when I try to do the login process in the ip phone, appear:
"Error: Server certificate validation failed. Contact your administrator" and in the Status messages "Invalid server certificate: expe.domain.com"
Trying to find info about this problem I found
"For Mobile and Remote Access through Expressway, the Expressway server must be signed against one of these Certificate Authorities"
in this doc:
I suppose the error appear because our Internal CA is not trusted.
Any way to register a 8800/7800 Phone through MRA feature without a signed certs by this Authorities? Usually we manage Internal CAs.
Thank so much!
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