you can free call with other using walki talkie call app using same network.
Now WALKIE TALKIE application currently available in the market free for any Android platform.
This APP not use your data, text or call allowance...You can talk free!
you can use it in at home , school , building, office with the use of same natwork device.
This APP is really family fun at it's best, as well as being business smart.
How to use?
Just install it on two android phones and away you go!
Both user should be connect with same network.
Tap the Wirless phone image on the screen if you want to speak and don't realse the Tap.if you want to stop then release the tap.