Maybe the best communication option for banks!
We always prefer AS2 from a communication perspective.
Why? Because it is a PUSH-PUSH protocol AND it has asynchronous (or synchronous) acknowledgement messages (called MDN’s).
With this in place we are always open to receive messages from our partners instead of us constantly monitoring FTP locations. Our server is Drummond certified to make sure that we can easily integrate with our AS2 partners.