We Empower Business Communications
From small office key systems to corporate Voice over IP (VoiP) Networks. Mastor is committed to finding the right telecom option for your unique needs
Mastor is proud to be a premier partner for one of the leading Cloud PBX providers in the country, NUSO.
As a NUSO premier partner, we can offer significant savings on your monthly phone bill, even if you have an existing on-premise telephone system.
On-Premise Phone Systems
Mastor is proud to partner with Epygi, a leading manufacturer of feature rich, economical, and scalable on-premise VoIP systems.
Video Surveillance Systems
Mastor expertly designs and installs cutting-edge Video Surveillance Systems to protect your business.
What We Do
Providing a consultative sales approach to help empower your business communications for more than 30 years
Years in Business
Number of Customers
Lines in Service
Why Choose Mastor?
We pride ourselves on becoming an ally to our customers through our consultative sales approach. Our goal is to help you maximize your team’s productivity while minimizing costs.
No Major Upfront Costs
We can wrap your upfront costs into a low monthly payment which makes budgeting a breeze
The Last Time You Will Need To Change your Telephone Service
With Cloud PBX service your software is always current. Moves, adds and changes are included, and your system grows with you.
Premium Customer Service
Our amazing support team is available 24/7 and is the best in the industry
Service plan options allow you to customize needs by user. And as their needs change, the flexibility offered allows for rapid response by our team.
Include your hardware in your monthly fee and receive replacements for the life of your service
“Working with the teams at NUSO and Mastor Telecom Networks has been a great experience for our growing staff. Between the sales team and technical support staff, they have met and exceeded our expectations throughout the entirety of our 5 year relationship. They are easy to work with and always responsive when we have a ticket item to handle.” Read More
“We have been working with Mastor for the past few years and it has truly been a positive experience. We are a financial institution with 9 offices spanning from Springfield, IL to metro St. Louis with approximately 175 employees. The technicians are extremely knowledgeable and will actually share the technical know-how with you if you are interested in performing some of the routine maintenance that comes along with managing a telecommunications system.” Read More