interactive voice responseCorserv offers an interactive voice response system for cardholders to conveniently activate their card, and reset their PIN. Features that are available on the self-service cardholder website are coming to the IVR soon, such as hearing card account balances, remaining credit amount, recent transactions, payment amount due and due date, and making a payment.  The IVR and self-service cardholder website typically eliminates 60% of calls to the call center.