Welcome to Telephonics Unlimited Inc.! We are locally owned and operated in Humble, TX, but service all of east Texas, the Gulf Coast, and the greater Houston metropolitan area. With almost 30 years in the industry, our staff is fully equipped with the tools and knowledge to provide quality, professional service. We are a commercial voice and data communication service company. We sell commercial phone systems, and install and service data networks. As a Vertical Communications dealer and a Hubbell Critical Mission Partner, we offer only the best technology to our customers. Call Telephonics Unlimited Inc. today to set up an appointment for an estimate. We also have on call technicians available for 24 hour emergency service. We are confident that you will be satisfied with the services we offer.