Switch Bank Intercoms

Bogen - Dukane - Rauland 

Telecor - Teradon - Deltacom 

Sales, Installation, Design, Preventative Maintenance, Bench Repair, Technical Assistance and Service Calls.

Administrative Intercoms

Bogen - Dukane - Rauland

Telecor - Teradon - Valcom

Toa - Simplex 

Preventative Maintenance, Bench Repair, Technical Assistance and Service Calls.

IP Based Touch Screen Paging and Intercom Console

Modular Based IP Intercoms

SIS Intercom System 

Sales, Service, Design, Installation, 

Training and Maintenance.

Bogen Quantum

Technical Assistance and Service calls

Pro Audio

Sales, Installation, Design, Bench Repair, Technical Assistance and Service Calls.

Clock and Telephone

Primex - NEC


Technical Assistance and Service Calls. 

Sales, Service, and Installation.

Video and Security

About Us

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.


We offer Sales, Service, System Design, Training, Preventive Maintenance, Infrastructure Planning, Installation and Project Management of your Intercom, Video, 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:

School Intercom and Sound Services

San Antonio, Texas

(210) 273-0993


Normal Business Hours

Monday - Friday: 8am - 4pm