VoIP Defender is a distributor and provider of AtomOS-based solutions to customers as a managed service. We are an innovative technology company with a global presence, headquartered in the Chicago suburb of Lake Zurich, Illinois. Our Disruptive Technology provides a single platform and one interface for all networking and communications needs. With over 2 million users, our technology is deployed on 5 continents offering improved operational efficiency and ease of use from a single vendor as a managed service.


AtomOS, our unique core technology was first developed in 2008 by our parent company, Atom AMPD, LLC. Designed from the beginning as an open-source based operating system, AtomOS features simple installation, ease of use and administration which scales from small to enterprise levels. VoIP Defender’s customers quickly experience significant cost savings while enjoying simplified infrastructure and operations and eliminating reliance on costly and dated ala-carte solutions.

Global Presence

Offices in:

US: Illinois, California (Silicon Valley), Florida, Georgia (Atlanta)

ASIA: China (Beijing), Malaysia (Kuala Lumpur), India, Indonesia (Jakarta), Singapore, Vietnam, India


Deployed in:  

Argentina, Australia, Austria, Brazil, Bulgaria, Chile, China, Colombia, Croatia, Czech Republic, Denmark, Dominican Republic, Finland, France, Georgia, Germany, India, Indonesia, Ireland, Israel, Italy, Japan, Latvia, Lithuania, Malaysia, Mexico, New Zealand, Norway, Panama, Peru, Poland, Romania, Singapore, Slovakia, US, and Vietnam and forever growing...



  • AtomOS Deployed on 5 Continents
  • AtomOS in Development since 2008
  • Currently over 2 million users of our technology
  • Complete End-to-End Communications and Networking Solution. Infrastructure, Technology, Hardware, Software, Services and Support




Contact Us


Lake Zurich, IL

Email: info@voipdefender.com

Phone: 847-719-7795

Fax: 847-865-7962

Remote Office

Salinas, CA