PHD has been installing and servicing business telephone systems in the Greater Boston and Northern New England markets since 1990 and is proudly named after it's three founders, Pat Dunn, Hugh Pringle, and Dick Hamel. We serve as the trusted, single source for our client's voice and data communications needs. From basic digital business phone systems to the latest VOIP, cloud and Internet services, PHD can keep you in touch with your clients, and keep things running smoothly.