Zen Systems Blog

Case Study: Restoring Reliability in a High-Stakes Testing Environment

Written by James Howard-Dobson | Aug 7, 2025 10:27:47 AM

Industry

Aerospace & Industrial Test Equipment

 

The Problem

A leading UK-based supplier of advanced test equipment was facing a communications crisis. Their on-premise 3CX phone system—once overseen by an internal IT technician—began failing repeatedly after that employee left the business. With no in-house expertise to troubleshoot the system, they were hit by multiple consecutive days of downtime, affecting operations, customer service, and overall team productivity.

 

The Breaking Point

Without reliable phones, business continuity was at risk. Repeated failures and lack of support from their existing setup prompted the company to search for a solution—and fast.

 

Enter Zen Systems

The company reached out to Zen Systems on a Thursday. By the following Thursday, they were fully migrated to Zen Systems’ high-availability hosted 3CX platform—a cloud-based solution designed to eliminate the very issues they had been battling.

 

What Zen Systems Delivered

  • Seamless Migration: Full system migration completed within days.

  • Business Continuity: Numbers temporarily diverted and new DDIs issued immediately for key employees.

  • Porting In Progress: Existing numbers now in the porting pipeline to ensure long-term continuity.

  • High Availability Hosting: Eliminated the single points of failure that plagued their previous setup.

  • Ongoing Support & Maintenance: No more reliance on in-house expertise—Zen Systems provides everything from licensing to hosting, calls, and support.

 

The Result

The company reported that the migration was “incredibly smooth” and praised Zen Systems for fast action, clear communication, and expert execution. After a string of frustrating outages, they now have peace of mind knowing their phone system is stable, supported, and built to scale with their business.

 

Key Takeaways

  • Challenge: In-house IT support left, leading to recurring phone system failures.

  • Solution: Zen Systems migrated the client to a resilient, cloud-hosted 3CX solution within a week.

  • Outcome: Smooth transition, uninterrupted communication, and a stable future with full support.

 

Is Your Business Relying on a Phone System That’s Letting You Down?

 

Zen Systems offers a fully managed, high-availability 3CX solution with:

  • 99.99% uptime SLA

  • Up to 80% savings on telecom costs

  • All premium features included as standard

  • Adaptive voice codecs for crystal-clear calls

  • Licensing, hosting, support & calls—all in one place

Let’s make sure your business never misses another call.

👉 Book a call with Zen Systems