HORIZON Push-to-Talk over Cellular Platform
HORIZON PoC Systems are built to help organizations communicate instantly using PoC Radios over existing 4G, 5G, and Wi-Fi networks. Teams no longer need traditional radio towers or repeaters because the service uses cellular networks nationwide. With cloud-hosted infrastructure, HORIZON PoC Radios offer voice, data, text, and dispatching features in one solution.
What PoC Radios Are and How They Work
PoC stands for Push-to-Talk over Cellular. PoC Radios use cellular networks instead of dedicated radio frequencies. When a user presses the talk button, their voice and data are sent over LTE, 4G, 5G, or Wi-Fi to a cloud service. This connects people instantly, whether they are in the same building or across the country. PoC Radios combine the simplicity of walkie-talkies with the wide reach of cellular networks.
These radios support one-to-one and one-to-many calls, group calls, text messaging, location sharing, and emergency signaling. Unlike traditional radios, PoC Radios are not limited by radio range or licensing. Teams stay connected anywhere there is network coverage.
Why Organizations Choose HORIZON PoC Radios
Nationwide Coverage With No New Radio Infrastructure
HORIZON PoC Radios use the existing cellular network. This means teams get wide-area coverage without building or maintaining radio towers. The system works everywhere from urban centers to remote areas where cellular networks are available. Coverage is consistent from site to site and even across state lines.
You do not need frequency licenses or complex repeater systems. HORIZON PoC Radios operate just like a mobile phone, but with instant talk capability and professional features essential for business operations.
Instant Push-to-Talk Communication
A defining feature of HORIZON PoC Radios is instant communication. When a user presses the talk key, the message goes out immediately to individuals or groups. There is no dialing or waiting for a connection. This helps teams stay coordinated in fast-moving situations where every second counts.
Reliable Group Calling and Messaging
HORIZON PoC Radios support large group calls. Dispatchers or team leaders can connect multiple users at once, making it easier to organize work across shifts or job sites. Messaging functions let teams share written updates and important details without interrupting voice traffic.
Key Features of HORIZON PoC Radios
GPS Tracking and Fleet Dispatch
Many HORIZON PoC Radios come with built-in GPS tracking. This makes it possible for dispatch centers to view team locations in real time. Dispatchers can send help faster, assign jobs based on proximity, and manage routes more efficiently. GPS also supports geofencing, giving supervisors tools to set virtual boundaries and get alerts when units move outside designated zones.
Data and Multimedia
Beyond voice, PoC Radios support data functions such as text messaging, image sharing, and even video where supported. Teams can send photos of issues or work progress and receive important documents instantly through the same system they use for calls.
Rugged Design for Tough Conditions
PoC Radios are built to withstand environmental challenges. Many models meet military-grade standards for shock, dust, and water resistance. This durability means devices continue functioning in construction zones, industrial facilities, and outdoor environments where everyday consumer devices might fail.
Seamless Network Switching
Where Wi-Fi is available, PoC Radios can switch automatically between Wi-Fi and cellular networks. This ensures consistent connectivity without manual user action. Teams stay connected whether inside a facility on Wi-Fi or mobile on a cellular network.
Integrating With Existing Radio Systems
Many organizations already have established radio systems such as DMR or analog networks. HORIZON PoC Radios can integrate with these older systems through bridge solutions that allow communication across different technologies.
PoC Bridge and RoIP Gateways
PoC Bridge devices act as gateways to connect PoC Radios with traditional radio systems. They translate calls from the cloud-based cellular network into formats understood by older radio gear. This protects existing investments while expanding communication reach beyond local radio coverage areas.
These gateways can link PoC Radios with DMR Tier II and Tier III systems, analog radios, and other networked devices. This means teams using PoC Radios can still communicate with users who remain on legacy systems.
HORIZON Dispatch: Centralized Communication Control
HORIZON includes a dispatch application that brings voice, text, and location data together in one interface. Dispatch staff can monitor radios, view unit positions, track calls, and manage messages from a computer terminal. This centralized system helps coordinate teams more effectively with tools designed for real-time situational control.
Dispatch features can include:
- Live mapping of all PoC Radios on the network
- Group call creation and management
- Text log storage for communication records
- Emergency alert handling
- Playback and search of past communications
These tools help supervisors make more informed decisions under pressure.
Choosing the Right PoC Radios for Your Team
Handheld Units
Handheld PoC Radios are portable and easy to operate with one hand. They are ideal for first responders, security officers, and field staff who need constant connectivity. These radios often include features like GPS, rugged casing, and long battery life for extended use.
Mobile & Vehicle-Mounted Radios
For fleets and vehicles, mobile PoC Radios mount directly on dashboards. These devices offer tactile buttons for ease of use while driving and features designed for safe operation on the road. GPS and real-time communications make them suited for logistics and transportation teams.
Smart Devices With PoC Capability
Some PoC Radios run on smart platforms with touchscreen interfaces. These devices combine the features of a PoC radio with mobile computer capabilities, allowing teams to use business apps alongside voice and data communications.
Support, Provisioning, and Scalability
HORIZON PoC Systems are designed to scale from small teams to large enterprises. Cloud-based services mean there is no central server to maintain, and new radios can be added quickly as teams grow. Support services help with provisioning, training, and ongoing management, ensuring teams stay connected and productive.
HORIZON PoC Radios
HORIZON PoC Radios bring together reliable nationwide coverage, advanced communication features, and centralized dispatch capabilities. Organizations that transition from traditional radios to PoC Radios gain wider coverage, flexible calling options, and integration with modern data tools. Whether for safety, operations, or logistics, PoC Radios offer a scalable communication platform that supports diverse mission needs.
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Learn more about Kelrad from your cleints, and find out why we are the leading providers of telecommunications in Georgia! Learn more about Kelrad from your cleints, and find out why we are the leading providers of telecommunications in Georgia!
Learn more about Kelrad from your cleints, and find out why we are the leading providers of telecommunications in Georgia!





