Telephony network, switch, and hardware manufacturers benefit because there are more applications which can run with their products. They can focus on the area of their expertise—hardware, switching, network integrate—without needing to come up to speed on programming of user interfaces, database access, or other high-level tasks. A related benefit is that the open platform of TAPI 2.0 and Windows NT will mean that a full-range of broad- and vertical-market applications will emerge from third parties, greatly expanding the market for telephony hardware for PC platforms and PCs with integrated telephony capabilities—which means switch vendors will sell more hardware.