Hawala is not on GRAJ. GRAJ does not operate, facilitate or integrate it and is not a money transmitter. This page explains how value moves without banks, because GRAJ is built for 195 countries and in many of them it does.
Hawala is a settlement system older than banking that moves value between countries without moving money. It works on trust between brokers and a later net settlement, and for a great many people it is faster, cheaper and more reachable than a bank transfer.
Free to join. Participants keep 95% of every transaction; GRAJ takes 5%. Built for 195 countries — payments live in the United States.