In the modern world, we all need to make sure we have instant access to each other.  Modern communications systems do a fantastic job of ensuring that we can push to talk and reach someone in our fleets or teams within a matter of seconds!

Push-to-talk is nothing new.  However, with the emergence of mobile data in the past decade, there has been a need to enhance the way we connect with each other.  That, thankfully, is where PoC comes in!


PoC, or Push-to-talk over cellular, allows radio users to connect to others through data networks.  Not only that, but it means that users can get an instant response, providing others are connected through Wi-Fi, 3G or 4G.  Naturally, emerging 5G standards will appear very shortly.

PoC first came into prominence in the last decade.  Following changes brought in by the Open Mobile Alliance, or OMA, devices are now able to connect to one another instantly over data.  This means that, ultimately, you can push-to-talk with international users, not just those in close range.  This is a massive boost to anyone managing fleets and teams cross-continent!


Push to Talk over Cellular, sometimes called Nationwide PTT or LTE radio systems have become popular in many industries across the globe. The systems are now becoming increasingly popular in the Tanzania and there is a good reason for this due to the number of benefits you can gain from a system which we illustrate below:

  • Great sound quality
    You will be able to experience superior sound quality even in the harshest environments. Thanks to the excellent noise-cancelling features , you will never need to worry about getting your voice heard.
  • Range of Features
    Good PoC radio systems should have a variety of useful features like an emergency button, Man down and Lone worker function . These features are ideal for environments where employees are working independently and need to be in contact constantly by voice or in the case of an emergency.
  • Easy to Administer
    PTT,PoC radio systems can be administered/programmed over the air without the radio needing to be returned to the dealer.
  • Long distance communications
    With conventional radios, communicating over a long distance is very difficult. You tend to need equipment like repeaters to expand your radio coverage/network. However, with POC you can now communicate with your team not just locally, but nationally or even internationally.
  • Low start-up costs
    Unlike traditional radio there are no requirements for infrastructure investment. No need to invest in repeaters, cabling, or radio programming. Once set up by Umoja Technical Services Limited, it’s as simple as turning on the unit and starting the call by pushing the PTT (push-to-talk) button.
  • Instant communication
    With just a press of a button, Push-to-talk over cellular (POC) allows you to communicate with individuals within your team or groups over distances instantly. With the Push-to-talk over cellular (POC) radio system, this is over a private closed network using a high level of encryption on a cloud server securing your private data and communications.

There are plenty of great PoC devices out there.  In many cases, you can transform Android handhelds into two-way radios to communicate across country borders.  However, it’s always worth considering the features and connectivity you are going to need long-term.


Consider the size of your fleets, and which data plans are likely to work best for you.  If you need your team to communicate globally, PoC could be a fantastic choice.  However, it’s never worth leaping into a data comms setup until you have a careful plan in place.

At Umoja Technical Services Limited, we provide a wide array of PoC devices and connectivity plans.  It’s likely to be the quickest, smoothest and most cost-effective way to keep your team talking from country to country.

If your business is going global, your comms should be, too.  Take time to look through our range, and make sure to get in touch if you need any help!