The Payza (formerly AlertPay) IPN2 payment method for Magento. Secure module with payment notification and offline status updates.
Community Edition 184.108.40.206 - 220.127.116.11
You need a Payza subscription.
The customer chooses the desired payment method in the checkout. After 'place order' the customer is redirected. A background process initiates an instant payment notification.
AlertPay does not support entering CreditCard data on your checkout. This is a Payza limitation (you would need https and very expensive PCI certification).