I want Sangoma phones to auto-provision via https against
a provisioning-server. To achieve that, I need to add the Root Certificate
that has been used to derive the phones client-cert that the phone is using
to establish the HTTPS connection to the provisioning-server.
The root CA has the following issuer:
C = CA, ST = Ontario, O = Sangoma Corporation, OU = Provisioning, CN = Phone Signing Key (2016-2018), emailAddress = security(at)sangoma(dot)com
Is there any place this root cert can be downloaded?