I have a lync client that is connecting to a Lync Edge server on port 5061. I get an invalid certificate error when connecting.
When I run wireshark, during the TLS setup, and inside the certificate I see an unexpected issuer with an RDN sequence of
Cisco Inc, STG, _internal_pp_ctl_phoneprocy_file
I'm a little confused by what this could mean and why this is present. I built this server from scratch and never installed a cisco certificate anywhere. I assume this is some feature of a Cisco firewall or switch (as Cisco call manager used to be present in the environment)
Can anyone offer an explanation and possible remediation?
The expected issuer is "User Trust" / "Network Solutions" / "Network Solutions Certificate Authority", as I am using a wildcard certificate on this Lync host.