Addition of such capabilities are extending the role of the IP PABX as a call handler, turning it into more of a central communications server that helps manage all inbound and outbound communications. The appeal of such a solution, Warhurst says, will finally convince many recalcitrant customers to give IP telephony a go. "People crawl before they walk before they run," he says. "Many companies are still about to start taking their first fumbling steps."