Mastor Tech that works for your business — not the other way around.

Since 1991 Mastor has been helping businesses communicate better and stay more secure with smart solutions like VoIP phone systems, video surveillance, structured cabling, & more. Sales, Service, and Support for Business Telephone Systems, Cloud PBX Systems video surveillance equipment, overhead speakers and paging equipment, business WiFi, and structured voice and data cabling.

Planning an office move, renovation, or expansion? Our latest blog explores why planning office network cabling early ca...
05/19/2026

Planning an office move, renovation, or expansion? Our latest blog explores why planning office network cabling early can help avoid costly changes, reduce downtime, and create a stronger foundation for future growth. Read the full blog here: https://mastor.com/why-office-network-cabling-is-worth-planning-early/

At Mastor, we provide complete communication infrastructure solutions including structured voice & data cabling, cloud/hosted systems, on-premise phone systems, softphones, and more to help businesses stay connected and prepared for growth.

Planning an office network cabling installation? Learn what the process involves, which cable type to choose, and the mistakes that cost businesses the most.

Have you heard the term softphone but aren’t sure if it’s right for your business? Our latest blog breaks it all down—ho...
05/05/2026

Have you heard the term softphone but aren’t sure if it’s right for your business? Our latest blog breaks it all down—how it works and why more companies are making the switch.
👉 Read the full blog here: https://mastor.com/what-is-a-softphone-and-should-your-business-use-one/
At Mastor, we offer multiple communication options that include softphones—designed to fit your business needs.
Whether you're looking to modernize your communications or improve mobility for your team, we can help you find the right fit.

A softphone lets your team make business calls from any device, anywhere. Learn how it compares to a desk phone and whether your business should make the switch.

Downtime costs more than you think.If your phones rely on the internet, an outage could mean missed calls, lost revenue,...
03/17/2026

Downtime costs more than you think.

If your phones rely on the internet, an outage could mean missed calls, lost revenue, and frustrated customers. The good news? It doesn’t have to.

Discover how VoIP disaster recovery keeps your business running—no matter what.

Learn more: https://mastor.com/how-voip-disaster-recovery-ensures-business-continuity-during-internet-outages/

Don't let an internet outage silence your business. Learn how VoIP disaster recovery and automatic call rerouting ensure complete business continuity.

📞 Is your phone system helping — or hurting — your business? Check out our latest blog!If your auto-attendant is confusi...
03/02/2026

📞 Is your phone system helping — or hurting — your business? Check out our latest blog!
If your auto-attendant is confusing, too long, or traps callers in endless menus, it might be turning potential customers away before they ever speak to your team — and every hang-up can be a missed opportunity.
Whether you’re evaluating your current system or thinking about how to improve customer experience on the phone, this is a quick and useful read with practical tips you can apply now. And reach out to us at 314-997-9000 for our help!
👉

Stop losing customers to bad phone menus. Learn key auto attendant best practices to improve your Auto Attendant or IVR design and keep callers happy.

Are your business text messages being blocked? It is a subject frustrating many small business owners. Check out our lat...
02/03/2026

Are your business text messages being blocked? It is a subject frustrating many small business owners. Check out our latest blog on this subject.

Stop your business texts from being blocked. Learn the essentials of business SMS compliance and A2P 10DLC to ensure every message gets delivered.

💡 Did you know your network is only as strong as the cabling behind it?While many businesses focus on their various syst...
01/05/2026

💡 Did you know your network is only as strong as the cabling behind it?
While many businesses focus on their various systems for ERP, CRM, Phone services, and security hardware & software, the foundation that supports it all is structured cabling.

In addition to our NUSO Cloud PBX products, our Epygi premise-based IP phone systems, and our Turing Video surveillance, we also design and install structured cabling to keep everything running smoothly.

👉 Learn why it matters in our latest blog:
https://mastor.com/understanding-structured-cabling-benefits-for-modern-offices/

Unlock the top structured cabling benefits for your business. Learn why upgrading your network infrastructure is key to speed, safety, and growth.

Happy New Year from Mastor! 🥂 As we welcome 2026, we want to sincerely thank our customers and partners for helping make...
12/31/2025

Happy New Year from Mastor! 🥂
As we welcome 2026, we want to sincerely thank our customers and partners for helping make 2025 a year of incredible growth. Your trust and collaboration mean everything to us.
We look forward to continued mutual success in the year ahead.
Please note: Mastor will be closed on January 1st, but emergency service is available by calling 314-997-9000 and following the emergency prompts.
Wishing you a happy and successful New Year!

12/23/2025
Today is Giving Tuesday, and we’re proud to support our client, Operation Food Search, right here in St. Louis during th...
12/02/2025

Today is Giving Tuesday, and we’re proud to support our client, Operation Food Search, right here in St. Louis during this season of generosity. Their work is mission-critical—supporting local food pantries and fighting food insecurity throughout the year.
We invite you to join us in making a difference. Please consider a donation today.

Operation Food Search is a hunger relief organization resources that have been proven to reduce food insecurity.

New on the blog! Small businesses know that upgrading to UCaaS (Unified Communications as a Service) can be a game-chang...
11/05/2025

New on the blog! Small businesses know that upgrading to UCaaS (Unified Communications as a Service) can be a game-changer—but getting it right isn’t always easy. Our latest post breaks down the common implementation challenges and how to overcome them without the headaches. If you’ve ever struggled with tech setup, team buy-in, or choosing the right provider, this one’s for you. Call us today to learn more at 314-997-9000

Facing UCaaS implementation challenges in your small business? Learn how to overcome hurdles with employee adoption, budget, and IT. Read our guide.

Address

123 Weldon Parkway
St. Louis, MO
63043

Opening Hours

Monday 8am - 4:30pm
Tuesday 8am - 4:30pm
Wednesday 8am - 4:30pm
Thursday 8am - 4:30pm
Friday 8am - 4:30pm

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