How Dennison Commercials Enhanced Multi-Site Communications with 3CX
Client Overview: Dennison Commercials
Dennison Commercials is an award-winning commercial vehicle partner for Volvo trucks and buses. It is also one of the largest and most established dealerships in the UK and Ireland. As a growing multi-site business, the company has more than 160 users across sites in Ballyclare, Coleraine, Dungannon and Newry. To keep teams connected, Dennison Commercials needed a multi-site 3CX phone system. This would link workshop teams, office staff and customer-facing departments across all four locations.
The Challenge Facing a Growing Multi-Site Business
As the business grew, Dennison Commercials outgrew its existing phone system and as a result communication between sites became less efficient. Calls were not always routed correctly and managers lacked call data to make informed decisions.
This led to slower team coordination and longer response times for customers. In addition, simple admin tasks, such as adding users or changing call flows, needed external support. This caused delays and reduced flexibility.
Furthermore, staff were working across multiple sites and more people were working from home. The old system could no longer meet the demands of the business.
The 3CX Phone System Solution
To address these challenges, Barclay Communications designed and built a cloud-based multi-site 3CX phone system for Dennison Commercials. Barclay worked closely with key staff at each site. Therefore, the solution was built around real workflows and daily business needs.
The multi-site 3CX phone system covered everything from start to finish, including:
- Multi-site architecture design
- Number porting
- Call flow setup
- User onboarding
- System testing and go-live
Throughout the process, careful planning kept disruption to a minimum. Barclay chose 3CX specifically because it handles high call volumes across multiple sites. It also allows central control of users, call flows and system updates. Find out more about how Barclay Communications delivers 3CX cloud telephony for businesses of all sizes.
As a result, staff took to the platform quickly. They now use features such as:
- Presence visibility
- Internal messaging
- Easy call transfers
- CRM integration
- Microsoft Teams integration
In addition to these features, Barclay installed live call stats wallboards at each site. These give teams a clear view of missed and abandoned calls in real time. Staff can then follow up with customers quickly and efficiently.
Following deployment, Barclay Communications also introduced a fully managed support service. This includes system monitoring, updates, setup changes and ongoing user support.
The Results
Ultimately, the multi-site 3CX phone system delivered fast and clear gains across the business. As a direct result, Dennison Commercials achieved:
- A 30% reduction in missed calls and better customer response times
- Stronger system stability across all sites
- Faster call handling between teams and locations
- Simpler system admin and management
- Time saved through automated reports and central control
- More reliable communication and increased uptime
- Better support for hybrid and remote working
- A system built to grow with the business
Overall, Dennison Commercials now has a reliable, flexible platform that supports daily operations, keeps teams connected across all four sites and is built to scale as the business grows.
Customer Feedback
“We would recommend Barclay Communications. Their technical knowledge, responsiveness, and structured approach made the entire process straightforward and gave us confidence at every stage of the project.” Stephen Dalzell, Dennison Commercials
Start Your Communications Transformation
Is your business looking to deploy a multi-site 3CX phone system? Similarly to Dennison Commercials, Barclay Communications can help. We design, build and support tailored VoIP solutions that deliver real results.
To get started, contact Barclay Communications today to book a consultation. Alternatively, explore our case studies to see how we have helped other businesses.

