Processing Checks

I have searched the forum as best I could but have found little or no info on processing checks online using this software. I only see offline in the interface, but I know some of the payment companies do ACH checks online. Does anyone know offhand how to get this working in CS-Cart 2.0. I select check.tpl in the payment setup but seems like every company I choose it reverts to the cc.tpl. I am working on a store where my customer is taking checks and wants to do it online though. Anyone processing checks online with their store or can anyone shed any light on this type of payment? Thanks in advance!