For this project we were using Intel Dialogic hardware and the software platform, CT ADE. The IVR system was created for a divertissement company selling tickets for different events. The caller can select from a menu the type of event of interest and then, after selecting other details using DTMF tones, he is asked to input his credit card number and it's expiry date. The IVR produces a connection through the Internet with a credit card processing company and sends the details and waits for the response. Once the IVR receive positive response from the credit card company it generates a purchase number. If the caller chooses to do so, he can input his mobile phone number and receive this purchase number on his mobile phone as an SMS message.

The important point here is that the IVR makes its connection over an Internet TCP/IP protocol to the credit card processing company and then waits for an answer. All the information during the call is logged in a local database. We then have a secondary connection with the SMS gateway in case the caller wants to receive the ticket purchase number as SMS on his mobile phone.

Charging credit cards over the telephone line can be used for many other projects, it is easy and quite secure way for completing business transactions.