All VMware software contains Customer Experience Improvement Program (CEIP) feature also known as Phone Home. You can read here what it does, but in general it sends VMware over the internet anonymized configuration, feature and performance data. VMware thus can track which features customer use or do not use, on what versions they are, which database, scale etc.
This is usually opt-in feature, so the user is asked during the installation if they want to enable CEIP. Below is a screenshot from vCloud Availability deployment.
However, during vCloud Director 9.7 appliance based deployment (as opposed to the binary interactive or unattended one) there is no configuration of this feature and it defaults to always enabled state.
In case you want to disable it, or see what it is actually configured to, use cell-management-command configure-ceip command on any of the cells (no service restart is necessary).
root@vcd1 [ ~ ]# /opt/vmware/vcloud-director/bin/cell-management-tool configure-ceip --status Participation enabled root@vcd1 [ ~ ]# /opt/vmware/vcloud-director/bin/cell-management-tool configure-ceip --disable Participation disabled