Payment gateways perform the relevant security and validity checks on credit or debit cards they are used by consumers to pay for goods or services.
We often get asked if we just offer the same services as a payment gateway. You might already be using a branded virtual terminal (VT) webpage to take card payments over the phone, such as Worldpay, Sage Pay or Barclays ePDQ etc, so when hearing someone ask you about “payment systems” it’s inevitable that this is going to be the first thing that comes to mind.