Hello,
Since I installed the platform could make calls to IP and URI Externals directions, but a few months ago I could not make calls to URI Externals but yes to a IPaddress external from devices registered in the VCS Control,devices registered in the VCS E can call normally.
This is the search history and error is displayed is Resource unavailable - Loop detected.
I do not understand because it appears as loopback@mydomain.com instead of @ cisco.com which is the original domain.