POC Radios ... sulit ba?

[Motortrend]

From what I read so far, there is no need for a server or base station.

Two radios are enough to start communications.

This could be useful as a communication device rather than dialing and calling on the cell phone.

Seems like so long as both radios are on and connected to the cell network, you can talk instantly just like a walkie talkie

What I am unsure is whether this radio should have its own sim card or it relies on the sim card of your phone

This is the video that got me curious about this radio ...

I think this particular radio in the video requires its own sim card.

One thing to be aware of is that these POC radios rely on cellular coverage. So, in areas without coverage or when down, you will not be able to use these like you could regular walkie-talkies.