Profile: Princeton Computer Support, Inc. is a full-service information technology company that provides computer and telephony networking sales, service and cabling. Our service offerings include support plans, IT outsourcing and critical care packages. We offer a professional full service networking department. We can design new network, install it and support it. Internet telephony refers to communications services-voice, facsimile, and voice-messaging applications-that are transported via the Internet, rather than the public switched telephone network.