The Cox Business Nickel Call Plan is available to all Cox business customers who subscribe to Cox Local Service and chose Cox as both their PIC and LPIC provider. The Cox Business Nickel Call Plan provides business customers with free blocks of interstate long distance minutes based on the number of local service lines subscribed to Cox. Any unused minutes at the end of the billing period will not carryover to the next billing period. Interstate calls in excess of the free minute block will be billed at $0.05 per minute.