The Right Support for You
PSU's highly trained team will keep your telecoms running smoothly
Our BSI ISO 9001:2015 accredited customer service ensures that you receive the assistance you need.

We’ll make sure we thoroughly understand your Mitel environment

We have the necessary experience across a wide range of industries & applications

We’re committed to providing ever higher levels of service

We’ll clearly detail the engineering & response repair times available to you

We’ll provide you with all the updates around Mitel services

We give you real value backed up with the quality & expertise of our engineering and service support teams.
Wightman & Parrish LtdExcellent value for Mitel Maintenance. We’ve seen other providers try to charge a premium rate for the service that PSU delivers as standard.
![]()
Read how we've helped our
Mitel Support customers
Case studies on our phone system maintenance
Looking for instructions for Mitel Phone System handsets?
Download Mitel user guides
Thinking about a New Mitel System or Upgrade?
PSU will take you through a step-by-step process to find the right Mitel telephone system and Mitel support to meet your needs.
Everything from hybrid, IP, hosted and software-based solutions, to all the handsets and accessories you'll need to keep your telecoms running smoothly.
“PSU got our telephone system up and running for us in less than a day - 10 out of 10!
Emerson
PSU Expertise

Expert engineering and execution

Significant cost savings

British Standards Institute accredited customer service

Step-by-step training

Full Mitel maintenance and support