Yeah that ABD status is ambiguous and will vary from school to school. I actually was admitted in advanced standing to Azteca/UCN because I had a surplus of ECTS hours. However, I had no doctoral credits. They treated my Master of Education plus my Graduate Certificate as equivalent to a Master of Philosophy so my degree program went from needing 180 credits (1 year of coursework, 2 years of dissertation) to just 120 credits (2 years of dissertation). I would probably just be a post-doctoral student at some universities while others admit me to another doctorate with some transfer credit awarded. It will definitely depend on the policies and programs of that particular school.