DSN is interesting from the point of a service provider, and receipt may provide added value. The consensus of the group present was to mandate support for DSN in messaging based Internet Fax. There was some interest in exploring MDN for later use. James presented slides that summarized the key changes from previous draft. TIFF-F was originally the product of an informal working group in the fax community to produce a document file format that could be implemented by them, and then has been in use for five years.
Editorial work is needed to fix that.
It was confirmed later in the meeting that it is highly desirable to have compatibility with existing TIFF-F readers. Part of the goal is to enable the migration of black and white fax to full color by taking advantage of the Internet. The primary idea is to create one Internet Fax TIFF spec, with conformance documents to capture practices. The goal is to separate out the application needs. Steve Zilles presented slides on the concept of PDF as a fax file format.