The number in the book to reserve the Oslo-Bergen train and the Oslo-Myrdal segment is 81 50 08 88. I absolutely cannot get through and I am freaking out as I am leaving for Norway in 5 days! Is there any other way of making reservations or a different number to call? Help!
Couldn't you buy your reservation online?
http://www.nsb.no/train_tickets/buying-your-nsb-ticket-article24730-2751.html
From that page:
"...Ticketless travel
If you will be travelling on a train which has seat reservations, you can book online. The ticket inspector will bring you your travel warrant when you have taken your seat on the train. That’s all there is to it!..."
I tried calling that number using Skype. Skype blocked it saying it was a "premium" number...similar to a 1-900 number in the US. This might explain why you're having trouble. Try this number: +47 23 15 15 15 Also, a travel agent in Finland might be able to make the reservations for you.