
Long Island Low Voltage Contractor · Since 1985
Cabling•Security Cameras
Access Control•Audio Visual Technology That Powers Your Business
Telephone Business Systems (TBS) is a Long Island low voltage contractor that designs, installs and supports structured cabling and fiber, security cameras, access control, voice and audio-visual systems for businesses across Nassau, Suffolk and New York City, from office buildouts and relocations to multi-site rollouts nationwide.
40+ Years
Industry roots dating to 1985
Nationwide
Multi-location deployment expertise
5,000+ Sites
Enterprise-scale deployment experience
Cabling to Cloud
Single-source technology provider
INC 500
Led by an Inc. 500 founder
Our Solutions
Complete Technology Infrastructure Solutions
From the cable in the wall to the cloud and communications platforms your team relies on, TBS, a full-service low voltage contractor based in Farmingdale on Long Island, coordinates critical infrastructure through one accountable partner.

Structured Cabling & Fiber
Voice, data and fiber infrastructure, backbone systems, testing, certification and multi-location coordination.

Network & Data Infrastructure
Network infrastructure management, wireless, switching, secure connectivity, data center design and implementation.

Voice & Unified Communications
IP hosted phone systems, call-center solutions and unified communications platforms for connected operations.

Commercial Security & Access Control
Business security cameras, access control, remote monitoring and security infrastructure for commercial facilities.
Security camera installation → · Access control installation →

Audio Visual & Collaboration
Conference rooms, displays, audio, video and collaboration technology designed for productive workspaces.

Business Relocation & Multi-Site Deployment
Planning, installation, migration, cutover and nationwide coordination that keeps technology aligned with operations.
How we work
One Team From Assessment to Ongoing Support
Instead of juggling separate vendors for cabling, phones, network, security and AV, you get one TBS team and one point of contact. Every project follows the same clear path:
Built for demanding environments
Infrastructure for the Organizations We Serve
TBS supports organizations ranging from individual facilities to complex multi-location operations.
Proven technology partner
Coordinated Rollouts for One Site or Thousands
TBS traces its roots to 1985, with Telephone Business Systems in its current form established in 1993. Its experience spans local, institutional and enterprise operations requiring dependable technology infrastructure and coordinated deployment.
Baccarat
Bed Bath & Beyond
Nassau County
Cornell Cooperative Extension
Satco Products
TJ Maxx
Mashreq Bank
CEVA Logistics
“The system was tailored to our unique needs, providing seamless connectivity and enhanced functionality that supports our mission-critical operations.”
– Ryan Levine, Satco Products
What our customers say
5.0 ★ on Google
Rated 5 stars by every customer who has reviewed us on Google.
“We had a great experience working with Telephone Business Systems. Brett Corvino and his team did an excellent job cleaning up our network closet by removing old and unused network cables, making everything much more organized. They also ran new network lines for our camera systems.”
Harpreet BadwalPurity Products · Google review
“We had an outstanding experience with Telephone Business Systems during our office renovation! … They were incredibly responsive, efficient, clean, and professional from start to finish.”
Suffolk Heart Group LLPSmithtown · Google review
“Outstanding service, quick response, quality work. I have used them many times for a variety of services and have never had them leave without everything in excellent working order!”
Lance SmithRepeat customer · Google review
Technology ecosystem
Platforms and Technologies
TBS supports enterprise environments built on widely used networking, security, communications and infrastructure technologies.
Cisco
Microsoft
Palo Alto Networks
Dell
AWS
Alcatel-Lucent Enterprise
Aruba
Fortinet
Hubbell
Leviton
Zoom
Resources
Technology Stories Worth Sharing

Planning an Office Move? Your Technology Checklist
View Story →: Planning an Office Move? Your Technology ChecklistPhones, internet, cabling and security all have to be ready on move-in day. Here’s what to plan, and when, so your team…

Dropped Calls Inside Your Building? How Cell Signal Boosters Work
View Story →: Dropped Calls Inside Your Building? How Cell Signal Boosters WorkMetal, concrete and low-E glass can block cell signal. A commercial cell booster brings strong coverage back for every major carrier.

Cloud vs. On-Site Recording: Choosing a Business Camera System
View Story →: Cloud vs. On-Site Recording: Choosing a Business Camera SystemShould your security cameras record to the cloud or to a recorder in your building? Here’s how the two options compare for…
Ready to connect?
Build What’s Next With TBS
Tell us what you’re planning and a TBS representative can follow up about the right infrastructure solution for your organization.








