What is the PoC Handset Radio?

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.

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Les quatres talkie-walkies PMR446 de notre marque RETEVIS

Il y a quatres talkie-walkies PMR446 pour notre marque RETEVIS: RT24, RT27, RT40, RT45. pour le moment, je vais vous expliquer ses caractéristiques.   Mais tout d’abord, qu’est ce que ça veut dire PMR446? PMR446 (Private Mobile Radiocommunications), un terme eu Europe, est une fréquence 446 MHz de talkie-walkie. Les peuples peuvent utiliser gratuitement cette fréquence 446 MHz bien que vous n’avez…

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