The advantage of Retevis PoC Hand radio Rt51 We all know that RT 51 this is a new network radio that only works over cellular it will work with AT&T and t-mobile services. And it’s a POC radio which stands for push-to-talk over cellular that’s brand new just released in the market. With the RT51, […]

PoC is an abbreviation of Push-to-Talk Over Cellular.
It means that you can communicate with your partner in one system by 4G/LTE network.
It is a technique of using the mobile phone network , to make calls that conduct like conventional walkie talkie,  with instant access and one to many calls,
one to one call, many to many call, use of the advantage on the world-wide coverage of the cellular phone networks, GSM, 3G, 4G etc.