In banking, what is a “gray screen transaction”?

Asked Jan 3, 2015· 1 answer
Faisal KhanAnswered Jan 3, 2015
It is not mandatory that large transactions have to go through SWIFT. If the two banks have a direct (trusted) relationship or one even through a correspondent bank (that is trusted), they can settle with each other directly.

Whilst SWIFT is used a lot, there are method of transacting with each other directly. Unbeknownst to many, SWIFT doesn't actually move funds. Just instructions that all member banks adhere to.
Related in Correspondent Banking, Nostro and Vostro, and Settlement