I have setup a demo lync environment including an edge server.
I have tested all my configurations (ie: edge ports, srv records, certs etc ) and all comes back positive.
My external client (firstname.lastname@example.org) can connect through edge and can IM internal and other external lync clients however when i try to add audio, i get "Call could not complete due to network issues".
For the sake of testing I have turned off all firewall aspects to my network to confirm that the firewall is not the culprit.
Attached is the logs from the external lync client (Test User). I was hoping someone would be able to spot the problem.