When travelling between München and Salzburg, are all international train tickets valid for using the ÖBB Railjet service or is a special/supplement ticket required?
I am traveling with a ticket RIT INCL. ICE ticket issued by DB and was originally booked for a EuroCity connection between those two cities. If I would like to make a short stop in München, would it be possible to take the next Railjet train to Salzburg, or do need to travel with a EC-train?