LongFi Solutions
Case Study
Case Study

With LongFi Connect, employees are connected the moment they walk in.

One of the largest construction firms in the United States, on the Cisco network already in place.

Its people move between offices through the day. Now their phones stay connected the moment they step inside, with no new hardware and no added cost.

Averages across the offices on the network
1.6+ TB
Mobile data carried monthly, on the Wi-Fi already in place
2,860+
Mobile users connected each month, across sites
No new hardware
Configured on the venue’s existing Cisco network
It has been working flawlessly. There have been no complaints, and people said their connection overall is better.
BrianNetwork Engineer at a national construction firm
The Challenge

Strong Wi-Fi, but still no indoor cell signal.

The offices had strong wireless, and indoor cellular still fell short, so the older fixes each came up short.

Dead zones indoors

Strong Wi-Fi, and still weak cell coverage in the same rooms.

Logins that expired

Guest portal credentials lapsed on a 30 to 60 day cycle, and again at each site.

A fix that was too big

The distributed antenna system quote came back oversized and overpriced.

Four groups to serve

Home-base staff, travelers between offices, visitors, and contractors.

The Solution

LongFi Connect: a simple improvement that uses the offices' existing Wi-Fi to fix indoor cell coverage.

It went on as a Passpoint configuration on the existing Cisco access points, so phones connect on their SIM and coverage scales office to office.

  • Connects on the SIM. Phones attach on carrier credentials, with no password, no portal, and no app.
  • No new hardware. A configuration on the Cisco network already in operation, not a construction project.
  • Coverage by area. Access points are grouped by area, so specific floors are included or left out.
  • Secure by design. Carrier SIM authentication and encryption, on a dedicated lane apart from business systems.
  • No added cost. Runs on the network in place, and the operator can disable it at any time.
Employee phones
Connect on the SIM
Existing Cisco Wi-Fi
Already in the offices
LongFi Connect
Passpoint config on the APs
Major mobile carriers
Secure and authenticated
Phones connect on their own, on the network the client already runs.
What Changed

Connectivity that follows people through the building.

Connected end to end

Walk from one end of the office to the other and stay on the same call.

Connected on walk-in

Phones attach the moment someone enters, before they reach a desk.

No login to chase

Visitors and travelers connect without a guest portal, at any office.

The Outcomes

What the client is seeing.

No complaints
reported since go-live, across the offices on the network.
  • Connected on walk-in. Phones attach the moment someone enters, with nothing to tap.
  • No complaints reported. No portal logins to chase, and a connection people describe as better.
  • New recurring value. That same carrier traffic can also return a monthly revenue stream.
The I.T. Review

What their own security team confirmed.

These are findings from the security review the client's own I.T. team completed before going live.

Safer than a guest portal

Carrier SIM authentication and encryption, not shared passwords.

Its own separated lane

The LongFi Connect lane rides a dedicated VLAN, apart from business systems.

No personal data

Devices are anonymous, with no phone numbers, SIM keys, or identities.

Carrier owns the end user

Questions about a specific user go to the carrier, not the venue.

Operator stays in control

On or off at any time, under the venue's own content and security policies.

Guided setup and monitoring

LongFi engineers help configure and activate the network, then monitor the connection.

For Multi-Site Operators

Keep your team connected across your offices.

LongFi Connect suits multi-site operators on Cisco, Meraki, Aruba, or comparable Wi-Fi. A short conversation is enough to see the fit.

Works with business-grade Wi-Fi and supports major mobile carriers.

LongFi Solutionsv2.0 · 2026-07-20

These figures are averages across the offices on the network. Any monthly revenue is combined gross carrier revenue in U.S. dollars, paid from what carriers pay LongFi for the improved connectivity.

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