Retrieves all resource schema elements and values of the Certificates based on a requested ID.
If no ID is specified in the GET, a listing of all Certificates (Server and Trusted) will be returned along with their associated IDs. These identifiers can be used to collect resource schema element values via the GET certificate id method.
To retrieve the SBC Edge system's server certificate, use 1 as the identifer. If the SBC Edge system contains Trusted certificates, these are retrievable starting from identifier 2 and above.