About Tandem Data

We’ve been wiring Dallas
businesses since 2000.

Based in North Dallas. Working wherever our customers have offices.Multi-location service

Tandem Data installs and supports the phone systems, cabling and networks that Dallas/Fort Worth businesses run on.

We handle voice and data cabling, fiber, business phone systems, Wi-Fi and wireless bridges, overhead paging and IP security cameras.

Most of our customers first called us for one job, like a new phone system, cabling for an office move, or better Wi-Fi in the warehouse. They kept calling because we were still around after the install.

Cat6 cables punched down into the back of a patch panel
Clean installs are easier to support.

Since 2000

We Know the Old Systems, Too

When we started, most offices had a Nortel or Avaya key system in the phone closet and a handful of data drops per floor. Since then we’ve moved customers to IP phones, hosted VoIP, gigabit networks and building-wide Wi-Fi.

We still support plenty of those older systems. A Norstar or BCM that’s working fine doesn’t need to be replaced just because it’s old, and we’d rather tell you that than sell you something you don’t need yet.

When it is time to move on, we’ll plan the cutover around your business so your phones aren’t down during the workday.

Multi-location installations & service

Based in Dallas.
Working nationwide.

Dallas/Fort Worth is home, but a lot of our customers have offices in other states, Canada and Mexico. We coordinate the installations and the service calls at all of them.

One phone number
for every site.

Whether you’re adding one branch or replacing phones at forty locations, you work with one team and one point of contact. We schedule the work, hold every site to the same standard, and keep you posted.

The setup at your twelfth location should match the first one.

Tell us about your locations

How we work

We Look Before We Quote

Before we recommend anything, we want to see your space, the equipment you already have, and how your people actually use it. A lot of what looks like a phone problem turns out to be cabling, and a lot of slow Wi-Fi turns out to be one old switch in a closet.

Phones, data, Wi-Fi, paging and cameras all run over the same cabling now, so it helps to have one company that understands all of it. You get a straight recommendation, a clean install, and someone who picks up the phone afterward.

Fiber jumper cables plugged into a fiber patch panel

Tell Us What You’re Working On

Moving to a new office, replacing an aging phone system, or fixing a network that’s overdue for an upgrade? Give us a call. That’s the fastest way to reach us, and we’ll take it from there.