SmartSI, can also be integrated in front of your existing IVR where customer entered digits are extracted before entering the IVR. The native values are replaced with semaphores (substitute values that meet MOD-10/Luhn validation) to satisfy the IVR collection and validation process. At the point when the IVR script would normally send the payment (or tokenization) transaction to the appropriate system, it is modified to send the transaction to the SmartSIP server instead. SmartSIP replaces the semaphore with the customer’s captured information, and then initiates the transaction on behalf of the IVR. Processor responses are passed back to the IVR and the call flow continues as designed. Since the PAN/SAD was captured and temporarily retained in SmartSIP’s encrypted server memory, the IVR and all downstream/connected systems are removed from PCI scope. The only elements that are in-scope are the Session Border Controller and the SmartSIP server.