Critical Communications


CSi provides facilities of all sizes with cost-effective, integrated communications solutions custom-built to meet their unique needs.

Serving Eastern Pennsylvania and the Lehigh Valley for nearly 40 years, CSi is the region’s single-source solution for the design, call boxinstallation and support of integrated communication systems. We offer the convenience of a single vendor, the advantage of cutting-edge, modern technology, and the experience to get the job done right – every time.


Wireless Networking

CSi designs, installs and maintains custom wireless networks that provide optimal coverage and fast data transfer speeds. Whether you need internal WiFi or a robust point-to-point or multipoint mesh network, CSi’s networking experts can help you deploy a wireless solution that provides maximum connectivity, increases efficiency and saves you money.


Public Address/Sound Reinforcement

CSi’s team of audio experts has decades of experience designing, installing and maintaining public address (PA) and sound reinforcement systems. We specialize in leveraging rich expertise and the latest technology to create high-quality, high-fidelity systems that are intelligible throughout the desired listening area.


Video Presentation/Media Distribution

Businesses, schools and other facilities across Eastern Pennsylvania turn to CSi to help solve their video presentation and media distribution problems. Our team of experts consistently design and install systems that combine ease of use and flexibility with the crispest, clearest visual experience possible – regardless of the video source or number of presentation screens.



CSi provides multipoint communication systems for a wide variety of facilities, including schools, correctional institutions, manufacturing plants and more. Our intercom systems leverage decades of experience and the latest technology to provide user-friendly, reliable communication with any part of your facility.


Mass Notification/Telecenter U

CSi is an authorized provider of Rauland-Borg’s groundbreaking network based Telecenter U mass notification system. Telecenter U leverages existing technology to combine emergency notification, event management and everyday notification needs into one user-friendly, web-based solution. It’s the smartest way to connect your entire educational communications universe.

Contact us today for a free consultation.

We're here to help

Let CSi help with an on-site, free consultation of your security, life safety or communication system.  Our team of experts will work with you to assess your current system and provide recommendations and industry best practices to maximize your investment.

State-of-the-Art Equipment From Trusted Brands


As a Gold Level certified HIS dealer for Honeywell, a Genetec Unified Elite Partner; and with trusted brands like Bosch, Commend, Notifier and HID, we’re able to offer a host of security and communication solutions designed to suit the unique needs of your facility.  We implement best-in-class solutions that maximize your return on investment.


The CSi Pledge

CSi will work hard to earn and keep your business.  Here are some of the values we do business with...



We strive for excellence



We do what we say we will do



We treat others the way we want to be treated