Push-to-Talk over Cellular Network

Portable devices such as the YAESU SRNX1E and SRNX100E rely on a technology that is both “simple” and yet powerful and effective: PoC, also known as “IP radio”.

What is Push-to-Talk Over Cellular (PoC)

Push-to-Talk Over Cellular (PoC) provides two-way radio services using 3G and LTE technologies.
This technology leverages the cellular infrastructure of mobile network operators to create a radio network with global coverage, overcoming the range limitations of traditional radio repeaters and base stations.
Today, PoC supports both narrowband digital radios and broadband 3G/LTE network.

But that’s not all: PoC also integrates advanced features of private mobile radio (PMR) networks, such as messaging, instant group and individual calls, GPS location tracking and emergency alerts.
By combining these functions with 3G/LTE cellular networks, PoC provides the bandwidth needed for modern applications including data, photos, and video — all with worldwide coverage.

How does PoC work

Devices using PoC technology connect to the mobile network infrastructure via a SIM card, just like mobile phones. PoC network services are hosted in the Cloud, with PoC servers privately owned and managed by the PoC platform.
Gateway routers ensure connectivity between mobile operators’ networks and PoC servers. In addition, PoC radios support WLAN connectivity, extending coverage inside buildings where LTE may be limited.
PoC radios can also switch automatically and seamlessly to LTE when users move outside WLAN coverage.

  •  
    PoC radios
    Mobile phones
  • Instant communication

    with the PTT button, no ringing or waiting time is needed.

  • Loud and clear audio

    2W speaker with noise cancellation, ideal in noisy environments.

  • Maximum reliability

    rugged, durable design for demanding work environments.

  • Simple and professional use

    intuitive interface designed for fast, effective communication.

  • Built-in safety

    one-touch emergency alarm to handle critical situations

Applications of PoC technology

PoC services are ideal for large-scale communications with low upfront costs. Sectors that benefit from PoC include:

Healthcare

Hospitals, care homes, and healthcare facilities demand timely communication from anywhere on site.
Healthcare professionals – from paramedics and nurses to security staff and on-duty doctors – can always rely on compact YAESU portable radios, both for emergency management and daily operations. Communication interruptions are eliminated, ensuring rapid response in critical situations.

Events & Hospitality

From hotels and restaurants to concert halls, nightclubs, bars, arenas, and stadiums, wherever guest and customer safety is a priority, YAESU is at the forefront with equipment designed to meet every need.
YAESU portable radios are an indispensable ally in hospitality and events, facilitating coordination between teams, reducing response times, and ensuring consistently high-quality service—key to leaving a lasting, positive impression on guests.

Sports Events

Managing staff communications during sporting events is made easy with YAESU.
 Stadiums and arenas host large crowds and are complex structures, often prone to signal interference, transmission delays, and coverage gaps.
To ensure safety and smooth operations, staff must have instant and reliable communication. YAESU portable radios provide stable connections, real-time coordination, and essential support for efficient and safe event management.

Security Services

In security operations, safety is twofold: protecting both the people and the facilities, as well as the staff responsible for them.
 Immediate and reliable communication is crucial to ensure operational efficiency and safety. Isolated security systems can hinder information flow between teams, slowing incident response and increasing risks to people and property.
YAESU portable radios, always connected and equipped with alert functions, provide crucial support in critical moments. Key features include one-touch calls and messaging, emergency alarms—essential tools to safeguard both staff and operations.

Construction Sites

On construction sites, safety and operational efficiency rely on constant, uninterrupted communication. Noise, dust, distances, and structural obstacles can hinder coordination between teams, slowing activities and increasing the risk of accidents.
YAESU portable radios ensure immediate and reliable connections under any condition. With advanced features like one-touch calling and emergency alarms, they are a key ally for workplace safety, while also facilitating coordination between teams and external contractors to meet project timelines and quality standards.

Industry

In industrial and manufacturing environments, effective communication between teams is critical for smooth and safe operations. Machinery noise, large spaces, confined areas, elevated structures, and complex facilities can all obstruct the immediate flow of information, delaying responses and increasing the risk of accidents or production downtime.
YAESU portable radios are an indispensable partner: offering constant connectivity, instant messaging, and one-touch calls to keep operations running safely and efficiently.

Emergency Response

When every second counts, you can rely on YAESU.
 During fires, natural disasters, or large-scale security operations, firefighters, security personnel, and law enforcement need devices that are 100% efficient and reliable.
In such situations, communication networks are often disrupted, creating an urgent need for temporary systems that allow rescue personnel to relay vital information to headquarters quickly.
 YAESU portable radios provide reliable, secure communication in any scenario, ensuring that frontline responders stay in constant contact with the command center—even in highly complex environments.

Discover all the features of the YAESU SRNX portable devices

SRNX1E

Advanced communication system

Cutting-edge technology for professional communications.
 Ideal for construction sites, industrial settings, and emergency situations where communication is mission-critical.

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SRNX100E

Portable IP business communication device

The perfect solution for mobile professional communications.
Designed for complex work environments where reliability and performance are essential.

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About us

Radio communication specialists for over 70 years

With decades of proven experience, we deliver innovative and dependable solutions for all professional communication needs.

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