You buy your pass online, and state which staffed station you will pick it up from.
You will recieve an email with the railpass reference number.
You can book the individual train tickets via email, quoting the pass number : email@example.com
I think the tickets are either collected with the pass, or maybe these days they can be sent by email.
I found the "International email" folk to be very good, rail passes seem to be their area of expertise.
Do remember that each time you change trains or bus connections, it uses up a whole segment of the pass...
You can phone amtrak from abroad too, but I think an email makes for less accent problems.
Make Reservations: For travelers outside of the United States, send your name, desired travel date(s), your USA Rail Pass Confirmation Number and the train(s) on which you want to travel to firstname.lastname@example.org prior to arriving in the United States, or call (001) 215-856-7953 during regular business hours (Monday - Friday, 8:30 am - 5:00 pm ET).
Edited by caravanman, 13 March 2017 - 06:02 AM.