Featured Brands




Syracuse, NY VOIP Telephone System Installations, Structured Network Wiring Services

Internal Telecommunication Systems, Inc.


VOIP Telephone Systems, Network Wiring and Technology Products

Communicate clearly with a telecommunication system designed, installed, and maintained by our technicians in Syracuse, NY. Internal Telecommunication Systems, Inc. is proud to employ dedicated employees with more than 100 years of telecommunication experience. Our 45 year old family-owned-and-operated company is known for our accountability and expert advice. Contact us at 315-472-6611 to learn more about our state of the art telecommunication systems, and structured tele-data network wiring.


Premises Based or Cloud Hosted Solutions: We have it!

We offer telecom systems from small to enterprise-sized businesses with 1 to 128 remote offices and between 5-4,000 telephones such as the Zultys "All In One" VOIP System that can be purchased as an appliance, or can be Hosted in the Cloud.  Either solution utilizes the same set of features, telephone units, and end user experience.  If you have a phone system over 10 years old, it could very well be costing you more money to own than a new system.  We can show you how to migrate to the VOIP solution right for your business or organization.


Structured Tele-Data Network Wiring:

Do you have an expansion planned, putting up a new building, or are moving to another office suite?  Let us determine whether the current wiring plant is suitable or needs help.  Our staff installs structured wiring to ensure that your telephone equipment and data network function at optimum speeds and in an organized and neat manner. We are a licensed low voltage installer within the City of Syracuse. As a certified Hubbell premise wiring installer, ITS can provide a 25-year Hubbell warranty and can certify the cables with testing reports.


  Unified Communications Without Complexity. Click here for more info...

Internet & Telecom Carrier Services

ITS can provide your business traditional phone service as well as cost effective SIP trunks, PRI/T-1, point-to-point T-1, Managed MPLS VPN's and Internet / Ethernet connectivity services from Spectrum, Verizon, Windstream  Earthlink and others.  Let us check the availability of broadband internet services that can be delivered to your business.

Managed IT Services and Data Products

  • Remote Worker and office connections
  • Wireless Networks; budget based or Meshed/Managed
  • Custom Domain setup & Email

Learn More About Internal Telecommunication Systems, Inc.:

  • Literature – A number of systems to best suit your business
  • Testimonials – Read what our customers have to say about our services

About Internal Telecommunication Systems, Inc.

Our staff has a deep knowledge of the tele-data industry and provides excellent customer service.

Proudly Serving:

The Counties of Onondaga, Cayuga, Cortland, Oneida, and Oswego and points beyond with our nationwide dealer network of Zultys and ICON certified Interconnect companies throughout North America

Contact Internal Telecommunication Systems, Inc. today at 315-472-6611 for a site survey and consultation, or browse the website for more information about our services.

Home  |  Literature  |  Testimonials  |  Contact Us

© 2020  Internal Telecommunication Systems, Inc. All Rights Reserved