With LightChat you can send English alphabet,numbers and symbols
LightChat have three working mode:
1,With Chat Mode you can communicate with others.
2,With Deliver Mode you can change your phone to a relay point.
3,With Emergency Mode your phone would send 'sos' signal by your flash light and front screen every 10 sencond.
How to use:
1,Find signal,move your phone to make the signal in the rectangular of the screen.
2,Tap Start Button (on top right) to start decode.
1,Input your message in the TextView
2,Tap Send Button to send message