Travelwise.net supports JRP booking workflow at the following steps:
JRP Rates Loading → Booking → Offer Issue → Printing JRP Exchange Order (Voucher) → Invoicing → Reporting to JTB (http://www.jtbuk.com).
Read more about Japan Rail Pass:
http://en.wikipedia.org/wiki/Japan_Rail_Pass
http://www.japantravel.co.uk
http://www.japanrailpass.net/eng/en001.html
http://www2.jrhokkaido.co.jp/global/english/railpass/rail.html