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Push-to-Talk over Cellular (PoC)

Mission-Critical Communication Without Radio Infrastructure

Replace Traditional Two-Way Radios With Nationwide PoC

Instant, secure push-to-talk group communication over LTE/5G - no repeaters, no frequency licenses, no coverage planning.

  

PoC is designed for professional operations that cannot afford communication failure.

Request a PoC Demo

The Problem With Traditional Radio Systems

Most two-way radio systems were designed for: Fixed locations, predictable coverage areas, limited scale - modern operations are none of those. 


  • Coverage gaps between sites
  • Repeaters becoming single points of failure
  • Long deployment times for new teams or locations
  • High upfront infrastructure costs
  • Ongoing licensing 

What Is Push-to-Talk over Cellular?

Push-to-Talk over Cellular (PoC) delivers instant voice communication using existing LTE and 5G networks. It provides the same push-button simplicity as traditional radios, but without the infrastructure limitations.


PoC works across:


  • Cities
  • Provinces
  • Countries


Anywhere there is cellular coverage.

How PoC Works

  • Users communicate using PoC devices or smartphones
  • Voice traffic is transmitted securely over LTE/5G
  • Centralized platforms manage users, groups, and permissions
  • Dispatchers and supervisors maintain full visibility and control


No base stations. No repeaters. No RF licensing.

Who PoC Is Designed For

PoC is ideal for operations that are: Mobile, Multi-site, Time-sensitive.


Common use cases:


  • Security companies managing multiple locations
  • Logistics and fleet operations
  • Construction projects with temporary sites
  • Event operations
  • Facilities and property management

Reliability & Network Resilience

A common concern is dependency on cellular networks.


The operational reality: Most organizations already rely on cellular networks for critical systems. PoC aligns with this reality.


  • LTE/5G networks are geographically redundant
  • Outages are localized, not system-wide
  • Priority SIMs and multi-network options are available

Security & Control

Enterprise-grade PoC platforms provide: 


  • Encrypted voice communication
  • User authentication and access control
  • Remote device disablement
  • Group-based permissions
  • Activity and usage logs


PoC delivers greater control and visibility than analog radio systems.

How Smart Radio Systems Delivers PoC

We do not sell generic devices.


We design PoC systems around your operational requirements:


  • Coverage assessment
  • Device selection
  • Group and workflow design
  • Deployment and onboarding
  • Ongoing support


This ensures PoC works in real-world conditions, not just on paper.

Evaluate PoC in Your Environment

The fastest way to determine suitability is through a PoC demo or trial.


What the demo includes:


  • Live PoC system walkthrough
  • Coverage and use-case discussion
  • Comparison with your current radio setup

Request a PoC Demo

Download Our Practical Comparison Guide

Traditional Two-Way Radio vs Push-to-Talk Over Cellular (PoC) (pdf)Download

Smart Radio Systems (Pty) Ltd.

Cape Town, South Africa

+27 83 232 0782

Copyright © 2022 Smart Radio Systems(Pty) Ltd. - All Rights Reserved.

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