These boards are ideal for client or small server system computer telephony (CT) applications requiring high-performance, cost-aggressive voice and fax processing, but don't require the large-scale system sophistication of SCbus- or CT Bus-based products. The boards use the same application programming interface (API) as their predecessor (D/4PCI), making it easy to scale existing applications to take advantage of their power and features. The boards offer enhanced DSP power and memory capacity that provides a base level of performance for today's requirements, as well as the "head room" for future application expansion via software-based technologies.