Business Details
35 Years
experience
Emergency
services
Trusted VoIP and Telecommunications Solutions
Mastor Telecom has been a leader in business communications since 1991, specializing in VoIP services, unified communications, and telecom infrastructure. Our team of certified professionals delivers tailored solutions for businesses of all sizes, from single entrepreneurs to enterprise clients. With partnerships like NUSO Cloud PBX, Epygi VoIP systems, and Turing AI video surveillance, we combine cutting-edge technology with personalized support. Our 30+ years of experience ensure clients receive cost-effective, scalable systems with 24/7 technical assistance.Headquartered in St. Louis, we serve local businesses and national clients through a network of trusted dealers. Customer testimonials highlight our exceptional service, industry expertise, and commitment to long-term relationships. We prioritize transparency, offering flexible financing options and customized plans that grow with your business needs.
Services
VoIP Services
SIP Trunking
On-Premise Phone Systems
Video Surveillance
Data Cabling
Cloud PBX
Unified Communications
Security Cameras
Network Infrastructure
Telecom Support
Details
- Year established: 1991
Highlights and features
- 30+ years of specialized telecom experience
- 24/7 US-based technical support available
- Customized communication plans for unique needs
- No major upfront costs with flexible financing
- Platinum partner of leading UCaaS provider NUSO
What people say
Exceptional customer service
Boringly reliable systems
Quick issue resolution
Technical expertise
Long-term partnership
Services
VoIP Services
Our VoIP solutions deliver enterprise-grade phone systems through NUSO's cloud platform. Businesses gain advanced features like video conferencing, instant messaging, and mobile integration. Systems include unlimited calling within the US and Canada, with 99.999% uptime guaranteed through redundant data centers. Customizable plans scale seamlessly as businesses grow.
SIP Trunking
Cost-effective SIP trunking solutions connect existing phone systems to the internet. Offerings include bundled packages with 6-46 lines, each with multiple phone numbers and directory listings. Services feature E911 compliance, caller ID, and unlimited usage plans with pooled minutes across all lines for flexible communication.
On-Premise Systems
Epygi-manufactured VoIP PBX systems provide reliable on-site communication solutions. Scalable options serve businesses from 5 to 5,000 users with advanced features like automated configuration, integrated security, and cloud monitoring tools. Systems include built-in network functions like firewalls and VPN capabilities for comprehensive telecom infrastructure.
Video Surveillance
AI-powered video security systems from Turing AI offer cloud-based monitoring with smart alerts and instant clip sharing. Solutions include NDAA-compliant IP cameras, NVR systems, and 4G-powered remote security options. Features like facial recognition and license plate detection enhance security operations with real-time analytics.
Data Cabling
Structured cabling solutions for voice, data, and low-voltage systems. Services include Cat 3/5e/6 installation, multi-mode fiber deployment, and coaxial cable infrastructure. All installations meet local code requirements with options for plenum, PVC, or shielded cabling to support modern telecom and network demands.
People
Tina Maguire
General Manager
With 30+ years in telecom, Tina leads Mastor Telecom with industry expertise. She previously worked at NUSO and brings strategic vision to the family-owned business. Passionate about technology's evolving role in communications, she focuses on innovative solutions for business growth.
Brian Green
Sr. Account Manager
A 30-year telecom veteran, Brian specializes in customized communication solutions. He managed major accounts including a 15,000-unit Toshiba system deployment. Now focused on full-service sales, he combines deep technical knowledge with personalized client consultation for business communication needs.
Jereme Shepherd
Account Manager
Since 2010, Jereme has designed telecom solutions from concept to installation. He excels at matching technology to business requirements, serving both new and established clients. An outdoor enthusiast, he values Mastor Telecom's collaborative team environment and technical excellence.
Ken Diers
Service Technician
With 15+ years in telecom installations, Ken implements comprehensive communication systems. He specializes in integrating diverse technologies for cohesive solutions. Customers appreciate his professionalism and technical expertise in both project planning and equipment repair.
Joe Serra
Customer Service Coordinator
Bringing 30 years of telecom experience, Joe manages service dispatch with industry knowledge. He transitioned from wholesale telecom sales to customer operations, leveraging his technical background to ensure efficient service delivery and client satisfaction.
Questions
What telecom services does Mastor offer?
We provide VoIP solutions, SIP trunking, on-premise phone systems, video surveillance, and structured cabling. Our services include 24/7 technical support and nationwide installation through partner networks.
Do you serve businesses outside St. Louis?
Yes, while headquartered in St. Louis, we serve clients nationwide through our network of certified installers and provide remote support for all locations.
What telecom equipment brands do you support?
We partner with NUSO for cloud PBX, Epygi for on-premise systems, and Turing AI for video surveillance. We also support legacy systems and offer equipment financing options.
Are there contracts for telecom services?
Our service agreements vary by solution. Cloud PBX plans include month-to-month options with equipment financing, while hardware purchases have no mandatory contracts.
How quickly do you respond to service requests?
Our support team typically responds within 22 seconds during business hours. Emergency service requests receive immediate attention with guaranteed resolution timelines.
Can you integrate with existing phone systems?
Yes, our SIP trunking solutions work with existing PBX systems. We assess current infrastructure to implement upgrades without requiring complete system replacements.
Reviews (4)
Chris Gloeckner
Feb 05, 2020
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Have had plenty of pleasant experiences with the team at Mastor. They have a knowledgeable staff and are committed to excellent service. I would recommend.
Josh Barnett
Oct 08, 2017
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Overall I had a very good experience working with Mastor Telecom. Specifically Jereme. He took the time to walk me thru all the processes and made sure I fully understood everything!
John Feltner
Jul 12, 2017
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I've been in the communications business 48 years. I have found Mastor to be a pleasure to work with. Upper level management, sales, office staff and technicians, have always gone above and beyond to make the entire job, (beginning to end) enjoyable. I look forward to a continued relationship.
Steven Lee
Jun 18, 2017
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Mastor Telecom provided excellent VOIP solution to fit our needs. Installation and follow up service has been very good.
