Celona in-building public connectivity
Guarantee connectivity for everyone in your building. Wi-Fi Calling covers some users. Passpoint covers more. Neutral Host reaches the rest. Deploy all three on a single Celona platform for seamless in-building connectivity with one vendor, one contract, and one dashboard.
Solution brief Contact usEveryone in your building has a phone. Not everyone has signal.
Every person who walks in carries a phone on AT&T, Verizon, or T-Mobile, but steel-and-glass construction can block the macro network. When coverage disappears, users step outside to finish a call, switch to Wi-Fi, or simply accept it. The result: an invisible population of users struggling to stay connected.
The usual fixes each cover only a slice:
Wi-Fi CallingOnly if users enable it
PasspointOnly on compatible devices
DAS18 months, millions of dollarsCelona offers all three on one platform, deployed together - so everyone has connectivity the moment they walk in.
Three layers, zero gaps
Each layer extends coverage to more users. Together, they reach everyone.
Layer 1
Wi-Fi Calling
Your widest net, with no user setup required.
Reaches most users automatically
- Supported by most phones and enabled by most carriers by default
- Calls, texts, and data route over Wi-Fi when cellular coverage is unavailable
- Celona Wi-Fi provides a managed, visible infrastructure optimized for voice
- Automatically serves users connected to Wi-Fi with Wi-Fi Calling enabled
Layer 2
Passpoint
Seamless and automatic - no login, no password.
Extends coverage beyond Wi-Fi calling
- Devices authenticate to your Wi-Fi using carrier credentials (Hotspot 2.0)
- No SSID to select, no portal, no password to enter
- Seamless outdoor-to-indoor connectivity where carrier Passpoint agreements are in place
- Native Passpoint support extends automatic connectivity to more users
Layer 3
Neutral Host (CBRS)
For everyone else - including users you’d never know you were losing.
Catches everyone else - any handset, no opt-in
- Reaches users who keep Wi-Fi off for security, policy, or bad past experience
- Covers carriers and devices without Passpoint, or users who haven't enabled Wi-Fi Calling
- CBRS + MOXN delivers native cellular for AT&T, Verizon, and T-Mobile from one infrastructure
- No app, settings, or opt-in - any handset gets full signal when it enters the building
Celona is the only vendor that delivers all three coverage layers on a single managed platform.
No more juggling separate vendors for Wi-Fi, Passpoint, and Neutral Host. Celona Orchestrator gives you one cloud-based operating model across every layer, access point, and device.
One contract, every operator
Sign once with Celona. We handle AT&T, Verizon, and T-Mobile onboarding, CBRS/SAS coordination, Passpoint agreements, and ongoing management.
Deploy in weeks, not months
Deploy all three coverage layers in as little as two weeks — without an RF engineering firm, carrier crews, or an 18-month DAS timeline.
Full visibility across all layers
See coverage, signal quality, device counts, and performance across Wi-Fi, Passpoint, and Neutral Host in one place — so you know who’s connected, how, and where.
Private 5G on the same infrastructure
The platform powering your public connectivity also runs private 5G for IoT, AGVs, clinical equipment, and cameras. No extra hardware. One foundation for your whole wireless strategy.
Healthcare
Higher education
Retail
Hospitality
Manufacturing and industrial
Healthcare
Connectivity that follows care
- Clinical staff, patients, and visitors all depend on reliable mobile connectivity
- Coverage gaps disrupt care coordination and patient experience
- Wi-Fi Calling, Passpoint, and Neutral Host work together to keep everyone connected across the campus
Higher education
Full coverage, every corner of campus
- Students, faculty, and visitors expect signal in dorms, classrooms, libraries, garages, and stadiums
- Campus safety and e911 reliability depend on it
- The three-layer stack covers every device across a dense, diverse population
Retail
No dead zones, front to back
- Shoppers use phones for mobile pay, product research, and calls
- Associates need reliable connectivity for inventory and comms
- Neutral Host backs up Wi-Fi to eliminate dead zones, including weak back-of-house areas
Hospitality
Coverage is now a baseline amenity
- A guest who can’t call from their room leaves a one-star review
- Neutral Host catches the guest with Wi-Fi off, the attendee without Passpoint, the visitor in the elevator bank
- Full-building coverage across rooms, conference space, and common areas
Manufacturing and industrial
One infrastructure, public and private
- Operators, contractors, and visitors rely on cellular for safety and coordination
- Facilities running Celona private 5G add the full public stack on the same infrastructure
- Personal devices served at no extra hardware cost while the private network runs operations
Providing superior indoor performance
Macro network
Celona Neutral Host
Signal strength
Average throughput
(Mbps)
Latency
(msec)
Voice quality
(higher score is better)
Frame loss
(streaming)
Wi-Fi performance data for Layer 1/2 is available separately.
Stanford Health Care is pioneering advancements in healthcare, dedicated to enhancing the experience and the outcomes for our patients and clinical staff. Beyond ensuring reliable public cellular connectivity within our facilities, we envision utilizing this platform to establish a secure private wireless network dedicated to essential medical technologies, including clinical communication, patient monitoring, and clinical video streaming.
Christian Lindmark, VP/CTO · Stanford Health Care
When I looked at the cost/benefit, it was a no brainer. We implemented the Celona private 5G network because it solved AGV connectivity downtime issues that we were having with Wi-Fi. Adding the Celona Neutral Host feature on top of the same infrastructure without adding additional technology or devices was perfect, and we find our employees taking advantage of the neutral host network for both their personal and corporate devices.
Luca Chichiarelli, Head of IT · Del Conca
Ready to guarantee connectivity for every person in your building?
See how the Celona three-layer stack closes your coverage gap completely - with one platform, one contract, and a deployment measured in weeks.