POC is a communication system that uses cellular networks to enable instant voice communication. It's often compared to traditional walkie-talkies but operates over the internet.

POC radios use cellular data networks for communication, making them suitable for long-distance and even international communication. Traditional radios operate on radio frequencies with limited range.

POC offers advantages such as wide network coverage, GPS tracking, multimedia messaging, and the ability to connect with users anywhere with cellular service.

POC services often include encryption features for secure communication. This helps protect private conversations from eavesdropping.

POC radios have unlimited range as long as there's cellular network coverage. However, coverage quality depends on the network's reach in a given area.

POC and traditional radios operate on different principles and frequencies. They are generally not compatible for direct communication.

Yes, POC radios rely on cellular networks, so a SIM card with data and voice service is typically required.