Can You Call for Help When You Need It?

Is your school experiencing crisis communication issues? Join this free webinar to learn the important differences between an ERCES system and a cellular boosting system, why indoor radio communications are problematic for schools, and more.

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What if you needed to call for help, but you couldn’t connect?

Unfortunately, that is a problem that we hear about more and more in school safety incidents. Mass notifications that don’t go out, SRO radios not working, these present significant safety concerns for school administrators.

This presentation will explain, using language you can understand, the factors that prevent calls from going through, and what you can do to fix the problem.

You will learn:

  • Why indoor radio communications are a problem for schools and we will review examples of school incidents where poor indoor comm (public safety and/or cell) hampered response.
  • ERCES 101: What is an inbuilding DAS? What is the difference between an ERCES system and a cellular boosting system?
  • Why radios and cell phones don’t work well indoors in schools in some areas, and what are the systems available to address them.
  • How to take action to fix the issues your school might be experiencing.


Charlie Schulz
Charlie Schulz
Engineer, In-Building Communications, Alliance Corporation

Charlie Schulz is a seasoned engineer with years of experience in the wireless industry, with a special focus on the In-Building Communications segment. A volunteer firefighter with 45+ years of service, he is well versed in the use case for Public Safety Emergency Responder Radio Coverage Systems (ERRCS) and has coached countless AHJs on code interpretation and implementation.

As Alliance Corporation’s representative to the Safer Building Coalition, Charlie is an active member of that organization’s Advancement Committee. He has represented Alliance at over 20 Safer Building Coalition trainings, many times serving as a co-presenter.

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