School Intercom Repair and Sound Services

We specialize in School Intercom Repair, Installation, and Upgrade. Programmable Bell Software.  

Bogen-Dukane-Rauland Simplex Telecor-Teradon-Valcom-Toa


Technical Experience


We are well-versed in a variety of operating systems: Terracom, Bogen, Dukane, Rauland, Toa, Telecor, Primex, Deltacom, Teradon, Valcom, Simplex, and 

Switch Bank Intercom Systems. 

Stay Connected


We offer Sales, Service, System Design, Training, Preventive Maintenance, Infrastructure Planning, Installation and Project Management of your Intercom and Pro Audio Sound needs. We have certified Technicians on staff to install a "Turn Key" solution. Our industry knowledge and experience allow us to accomplish even the most challenging objectives.

About SIS


The world of technology can be fast paced and scary. Our goal is to provide an experience that is tailored to your company's needs and budget. Our founder, Poley Barcenez, started his career in The United States Air Force. Over the course of 30 years, Poley has worked for numerous companies in the San Antonio area. In 1988, Poley founded School Intercom Services (SIS). He has established a customer base of over 80 school districts locally and more than 1200 schools and businesses Nationwide.

Contact Us

For Questions or Quotes:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

School Intercom and Sound Services

San Antonio, Texas

(210) 273-0993


Normal Business Hours

Monday - Friday: 8am - 5pm