Telephone Systems

D&I Electronics, Inc. is the trusted team for commercial telephone system installation, repair and service in the Northern Illinois area. Our engineers are looking forward to assessing your telephone needs and providing a free estimate.

Our Commercial Telephone Systems Include

  • Complete office phone wiring
  • Commercial phone installation

Alarm Monitoring

Unhappy with your current alarm monitoring company?  D&I can monitor any existing alarm system starting at $31.99/month.

Our Affiliations

D&I is proudly associated with the National Fire Protection Agengy (NFPA), the Electronic Security Association (ESA), and UL, LLC.

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