WiFi Walkie talkie
WiFiCast is an application that enables us to communicate in a way similar to the walkie-talkies using different devices connected to the same wifi network. To do that it uses multicast, a transmission data protocol that allows us to send data from an emitter to many receivers in a way that the network traffic is not dependent on the number of receivers.
WiFiCast default startup mode is listening. That mode enables us to listen to what others in the network may be emitting. For us to be able to talk all we need to do is to push once the button saying “Listening”, in doing so it will change to “Speaking”.
We have two different ways to exit the application. If we push the exit button on the application interface, we will stop completely the service, that means that we will be unable to speak or talk anymore. If we exit the application by other means (eg: pushing the home button) the service will remain active (an icon will remain in the notifications area to indicate it), that way we will be able to speak or listen (depending on how the button to do that was left). If we want to completely stop the service we will have to go to the application and push the exit button.
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