Push-to-talk connecting aviation, construction and healthcare teams
Push-to-Talk over Cellular

Connect dispersed teams over 4G, 5G and Wi-Fi.

PTToC gives teams instant one-to-one and group voice across wide geographic areas while adding messaging, location and smart-device workflows. It is best where users need cellular coverage and more functionality than traditional radio alone.

Operational outcomes

What this solution is designed to improve.

The operating model should match where people work, how quickly they need to reach each other and whether voice must sit alongside messaging, location, dispatch or Android workflows.

01Wide-area voice

Connect teams across multiple sites or national operations.

02Smart-device workflows

Combine PTT with messaging, location and Android applications.

03Flexible device choice

Use smartphones, rugged Android devices or dedicated PTT hardware.

04Hybrid communications

Combine PTToC with DMR where different roles need different resilience.

The power of push-to-talk in the field

One push. The right team hears it.

Give frontline teams an immediate voice channel while they keep moving, working and responding — whether they are airside, on site, in a hospital estate or supporting distributed infrastructure.

AviationConstructionHealthcareInfrastructure & facilities
Field supervisor using push-to-talk across airport, construction and healthcare operations
Instant voice communication across mixed operational environments.
Relevant technology

Build the right communications stack for the role.

Choose software, rugged devices and accessories around coverage, working environment, dispatch needs and the people using them.

Zello

PTT software

Relevant technology / delivery

One-to-one and group voice across smartphones, rugged devices and dedicated hardware.

See related details →
RugGear

Rugged Android devices

Relevant technology / delivery

Purpose-built smart devices for frontline users who need PTT plus business applications.

See related details →
AINA

PTT accessories

Relevant technology / delivery

Remote speaker microphones and accessories for operational roles.

See related details →
Connected across roles

One communication layer across different teams.

Use the same push-to-talk workflow across different devices and environments, then configure channels, dispatch and accessories around each role.

Aviation, construction, healthcare and security teams connected by push-to-talk
Mixed teams, shared channels, immediate coordination.
Frontline aviation worker using Zello push-to-talk
Technology already in the Foresolutions stack
ZelloRugGearAINA
Customer proof

From unreliable legacy radio to a connected airside operation.

Cobalt Ground Solutions at Heathrow moved from patchy legacy radio to Push-to-Talk over Cellular, then expanded the same operational programme into digital compliance, asset tracking and vehicle safety.

Cobalt Ground Solutions · Heathrow

A communications problem became a wider operational improvement programme.

The project delivered faster, more reliable airside communication alongside a digital audit trail and connected operational visibility.

Read the case study →
Buyer questions

Push-to-Talk over Cellular: the key buying questions

Straight answers for organisations comparing PoC, PTToC and traditional radio communications.

What is Push-to-Talk over Cellular?

Push-to-Talk over Cellular uses mobile data or Wi-Fi to provide instant one-to-one or group voice communications through smartphones, rugged devices, dedicated PoC radios or desktop dispatch applications.

How is PTToC different from two-way radio?

Traditional two-way radio communicates over dedicated radio spectrum and infrastructure. PTToC uses IP connectivity, making it easier to connect users over large geographic areas and add software features such as dispatch, location and messaging. The best choice depends on coverage, resilience, licensing and workflow.

Can PTToC connect workers across multiple sites?

Yes. Because PTToC works over cellular data and Wi-Fi, authorised users can usually communicate across sites, regions or countries rather than being limited to one local radio system, subject to network availability and platform configuration.

PoC radio · PTToC · network radio

Radio-style communication over cellular and Wi-Fi.

Push-to-talk over cellular gives distributed teams the speed of one-button group voice without requiring every user to be within one conventional radio network. The important design questions are coverage, resilience, user roles, devices and how dispatchers need to coordinate the operation.

What is a PoC radio?

A PoC radio is a push-to-talk over cellular device. Instead of using a conventional DMR radio channel, it uses an authorised push-to-talk service over available 4G, 5G or Wi-Fi data. Users can communicate one-to-one or in groups using radio-style push-to-talk devices, rugged smartphones or supported mobile devices, while dispatch features can add location, messaging and operational coordination depending on the platform selected.

01 · Wide-area teams

Connect users beyond one site

Useful for field teams, airports, construction operations, logistics, facilities and other organisations whose users move between locations or across a wide geographic area.

02 · Radio-style workflow

One-button group communication

Dedicated PoC devices and supported rugged hardware keep the familiar push-to-talk workflow while using cellular or Wi-Fi data for the connection.

03 · Dispatch

Coordinate the operation

Depending on platform and configuration, dispatchers can manage groups, monitor authorised users, communicate from a desktop and combine voice with location or messaging workflows.

RequirementPoC / PTToCDMR radioNormal phone calls
Instant group voiceStrong fitStrong fitNot the normal workflow
Multiple sites / wide geographyStrong where data coverage is suitableRequires linked/integrated radio infrastructureWorks but lacks radio-style group workflow
Independent local radio coverageDepends on cellular/Wi-Fi availabilityStrong fit with correctly designed infrastructureDepends on mobile network
Dispatch and software workflowCore strength of many PoC platformsAvailable with selected systems/integrationLimited operational dispatch workflow

PoC is not automatically a replacement for DMR

If an operation requires dedicated local coverage or communications that should remain independent of public cellular services, DMR may still be the better architecture. The correct answer can also be a hybrid design.

Coverage should be tested against the real workflow

PoC quality depends on usable data connectivity where staff actually work. That includes buildings, basements, yards, aprons and transition areas—not just the places where a phone happens to show signal during a demonstration.

PoC radio · PTToC · 4G/5G/Wi-Fi communications

PoC radio gives teams push-to-talk behaviour without relying on a local radio network.

Push-to-Talk over Cellular (PTToC), also called PoC radio, uses 4G, 5G or Wi-Fi to provide group voice communications across sites and wider geographic areas. It is particularly useful where teams are distributed beyond the practical coverage of a conventional on-site radio system.

Multi-site

Connect teams across wider areas

Cellular connectivity can support users across multiple sites, regions or mobile operations without deploying a dedicated repeater network everywhere.

Dispatch & channels

Keep the familiar push-to-talk workflow

Users can work with channels, groups and dispatch-style communications while using purpose-built devices or supported smart devices.

PoC vs DMR

Choose around coverage and resilience

PoC is not automatically a replacement for DMR. Local resilience, cellular availability, site coverage and operating requirements determine which architecture fits best.

Aviation communications: Foresolutions positions aviation operational communications around Zello/PTToC. We do not position DMR as the aviation communications solution on this site.
Architecture check

Test cellular coverage and dispatch workflow before replacing local radio.

PTToC is strongest when the network, device estate and operational workflow support it. Compare that with DMR rather than assuming one technology should replace the other everywhere.

Evaluating the platform? See Zello push-to-talk for business and how Foresolutions designs channels, devices and deployment.

What operational challenge should we solve?

Tell us what is wasting time, creating risk or making work harder. We’ll design the right solution around it.

Discuss Your Challenge →

Asset visibility Track it.Find it.Use it. Know where it is. Find what teams need. Keep valuable assets working.

Connected operations Connect it.See it.Control it. Connect people and systems. See what matters. Control the response.