Modern Operational Communications for Estates and Infrastructure
PTToC delivers instant push-to-talk voice over 4G, 5G and Wi-Fi.
As radio spectrum tightens and operational footprints expand, many organisations are rethinking how day-to-day communications are delivered.
Push-to-Talk over Cellular (PoC) provides a secure, scalable layer that works alongside licensed radio — extending reach without increasing UHF dependency.
At Foresolutions, we deploy PTToC where speed, coordination and clarity matter. We design solutions that fit how teams actually work on the ground, not how platforms are marketed.
A Sector in Transition
The UK's operational communications environment is undergoing
significant structural change. The planned withdrawal of legacy
analogue networks, the ongoing expansion of critical national
infrastructure, and growing demands for real-time data integration are
collectively reshaping how organisations think about their
communications architecture.
What Organisations Are Facing
Enterprise estates, NHS trusts, and transport operators are increasingly
expected to maintain uninterrupted communications across wider
geographic footprints - often with fewer available spectrum allocations and tighter capital budgets. The challenge is not simply one of coverage; it is one of governance, interoperability, and operational continuity.
PoC is emerging as a strategic response: a complementary layer that extends reach, reduces spectrum dependency, and integrates cleanly into existing operational frameworks.
When Spectrum becomes a bottleneck
Licensed UHF spectrum is a finite resource. As operational footprints expand — across multi-site NHS trusts, large transport hubs, or sprawling
estates - organisations frequently find that their existing allocations cannot accommodate growth without significant investment in licensing,
infrastructure, or both.
PoC does not replace licensed radio where it performs well. It resolves the gaps where spectrum constraints, geographic reach, or infrastructure
costs make traditional extension impractical.
Licensing lead times
Ofcom licensing processes for additional UHF spectrum can take months, creating operational gaps during periods of expansion or
site acquisition.
Interference risk
Dense urban environments and shared infrastructure sites increase the risk of co-channel interference, constraining the effective use
of existing allocations.
Infrastructure costs
Extending licensed radio coverage to new sites requires repeater infrastructure, mast agreements, and ongoing maintenance - a
capital-intensive proposition for expanding organisations.
Cross-boundary operations
Regional licensed systems do not naturally extend across organisational boundaries, creating communications silos that
impede coordinated responses.
INTEGRATION ARCHITECTURE
Where PoC fits within mission-critical radio
Understanding the appropriate positioning of PoC within a communications architecture is essential to avoiding both over-reliance and underutilisation.
PoC is not a replacement for licensed, mission-critical radio systems such as TETRA or DMR. It is a supplementary operational layer - designed to extend reach, bridge coverage gaps, and enable unified communications across mixed environments
Licensed Radio
Primary mission-critical comms. Dedicated spectrum. Highest resilience.
TETRA or DMR for time-critical operations.
PoC Layer
Cellular-delivered PTT. Extends coverage beyond licensed footprint. Operates across 4G/5G public and private networks.
Management Platform
Centralised dispatch, group management, and audit trails. Azurehosted for enterprise governance and data sovereignty.
Radio Interoperability via RoIP Integration
Once PoC is positioned as a supplementary operational layer, the next question is interoperability. Radio over IP (RoIP) integration allows licensed radio and cellular users to communicate within unified talkgroups - without altering existing workflows.
RoIP integration means that a site manager operating on a PoC-enabled smartphone can communicate directly with a security officer on a UHF radio - without either party needing to change device or workflow. This interoperability layer is particularly valuable during major incident response, where multi-agency communications must span both legacy radio and cellular infrastructure simultaneously.
Unified Devices for Modern Push-to-Talk Operations
Operational teams no longer need to carry separate two-way radios, smartphones, and tracking devices. Modern Push-to-Talk over Cellular (PoC) solutions combine voice communication, workforce applications, and location services into one rugged, enterprise-managed device.
This approach simplifies communication while giving teams the tools they need to stay connected, safe, and productive.
One Device. One Platform. Complete Operational Control.
Voice, data and operational tools - working together in one device, not separate systems
Device convergence and unified operational endpoints
Operational teams no longer need to carry separate radios, smartphones and tracking devices. Modern PoC deployments enable a single rugged
device delivering dedicated push-to-talk alongside workforce applications — all within a managed enterprise environment.
One device. One pane of glass.
Dedicated push-to-talk with physical PTT
controls
Email, forms, task management and secure messaging
Workforce applications
running in tandem with
voice
Centralised device management and policy control with GPS and lone worker functionality
Enterprise use cases across key sectors
NHS Trusts & Healthcare Estates
Multi-site hospitals with basements, plant
rooms and satellite buildings. Porters, estates
teams and maintenance staff need reliable
voice - but also access to multiple workforce
applications.
- PoC enables a single managed device supporting voice, job allocation apps, email, forms and lone worker protection.
- Improved coordination between porters and maintenance teams
- Voice and task management running on the same device
- Extended coverage across 4G-reachable areas
- Reduced reliance on additional licensed radio channels
Aviation – Airside & Land Operations
Airports operate layered communications
environments where licensed radio is reserved
for core security and critical operations. Many
below-the-wing personnel, ground handling
teams and contractors are not issued radios -
but still require structured voice comms.
- PoC provides controlled group communication for operational teams without impacting security radio infrastructure.
- Dedicated voice channels for ground crews and contractors
- Reduced congestion on mission-critical radio systems
- Coverage across terminals, stands and remote operational areas
- Centralised group management for shiftbased operations
Construction & Major Projects
Construction sites evolve rapidly. Temporary
infrastructure, expanding footprints and
spectrum limitations make traditional radio
expansion slow and costly.
- PoC represents the future of construction communications — bringing voice and operational data together on a single device.
- Rapid site-wide deployment without waiting for new frequency allocation
- Voice, drawings, forms and site apps on one rugged device
- Scalable communications as project phases change
- Improved coordination between supervisors, subcontractors and logistics teams
Operational and strategic benefits at a glance
Browse our Push-to-Talk solutions
Zello
A flexible push-to-talk over cellular platform delivering instant voice communication across smartphones and connected devices.
AINA
Rugged push-to-talk devices and accessories designed to support reliable, hands-on communication in demanding environments.
Hytera Hytalk
A professional push-to-talk over cellular solution combining wide-area connectivity with centralised dispatch and control.
RugGear
Combining rugged hardware with state-of-the-art technology, over public or private broadband networks via LTE.
Start with architecture, not a sales pitch
Every operational environment is different. The right PoC deployment depends on your existing radio estate, spectrum position and day-to-day
workflows. We begin with a structured review - not a product demonstration.
What a consultation covers
- Review of existing licensed radio infrastructure and coverage gaps
- Assessment of spectrum position and expansion requirements
- PoC deployment options, including integration pathways
- Hosting and administrative structure
- Device strategy and deployment planning
- Cost comparison against traditional radio expansion
Engage our team
We work with enterprise, public sector and infrastructurefocused organisations across the UK. Consultations are structured, confidential, and obligation-free. We will provide a written architecture summary following your initial engagement.
Why choose push-to-talk over cellular (PTToC) instead of traditional two-way radio?
Push-to-Talk over Cellular (PTToC) is an evolution of two-way communication that complements traditional radio systems rather than replacing them entirely. For organisations operating across wider areas, multiple sites, or temporary locations, PTToC can offer a more flexible and modern approach by using existing cellular and Wi-Fi networks. This reduces reliance on fixed radio infrastructure and specialist hardware, while introducing additional tools for visibility, management, and control that are not typically available with conventional radio solutions.
Wider and more consistent coverage
Traditional two-way radio is constrained by range and terrain. PTToC uses cellular and Wi-Fi networks to support communication across wider areas without line-of-sight limitations.
No radio licences or infrastructure to manage
Unlike radio systems that depend on licensed frequencies and repeaters, PTToC operates on existing networks, enabling rapid deployment with minimal setup beyond device or app installation.
Improved visibility and control
PTToC platforms provide dispatcher tools, GPS location tracking, and call recording, giving operations teams greater oversight during and after communications.
Extended communication capabilities
In addition to voice, PTToC supports messaging, video, and data sharing within a single platform, supporting clearer coordination.
A future-ready alternative
PTToC integrates with current devices and digital workflows, offering a practical and flexible complement to traditional radio systems.
PoC FAQs
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