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Mitel is the fastest-growing provider of cloud business communications in the world.
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Telecom Maintenance
Current or legacy risk free maintenance and repair solution.
Solutions for Your
We have you covered Telecommunications or Network Infrastructure.

Communications Solutions for Businesses of All Sizes

For over 20 years Cornerstone Communications had delivered a higher level of service at a substantial saving.

  • Save Money with Hosted PBX
  • Keep your legacy equipment running
  • Easily manage communications
  • Improve service
  • A highly scalable, flexible communication
  • Indoor / Outdoor Wireless Systems
  • Video Surveillance
  • Fiber Optic Solutions to enhance networks
  • Data Infrastructure
  • On-Premise Telecommunications
Mitel - Watch the Case Study

Intelling – Clever Communication

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Video — 4:15 min.

Our client’s reviews

Testimonial by Gio Otero
Taking the time to thank you and your team of Engineers at Cornerstone Communications. We had a complete and total voicemail outage and your team of Engineers responded in 30 minutes. We brought our voicemail server to your site and you had it operational in one hour. That is just tremendous customer service! We recommend Cornerstone on all facets of telecommunication services to any existing or future clients. We have been Cornerstone Communications’ client since 1999…that is 18 years of continuity that is unseen in today’s World.
Gio Otero
Energizer Holdings, Inc.