Telephonics Unlimited Inc. is a full-service professional communications company offering sales, installation and service of voice, data, and audio video (A/V) solutions for your business. We have been a leader in the greater Houston area since 1988 and have a dedicated professional staff with nearly 100 years combined experience in the industry. Our technicians are trained and certified in the installation and service of low voltage cabling for data networks, telephone & paging systems to name a few.