When you got a fax via the COM API there is an XML property that contains metadata for the fax. I cannot find the same functionality in the Web API. DocumentFiles seemed like it had potential but I can't see where you get anything other than the fax in PDF or TIFF. Documents/{id} does have some of the metadata but not nearly as much as the XML via COM and it's only in json. Same with GET /DocumentMetadata except even less data.
Question: Does the Web API support the fax XML metadata equivalent of the COM API? If so, what Web API call?