How can I build an App that makes and receives Calls from Global System for Mobile communication (GSM)?
I need to build an App from Scratch that can originate and terminate calls to GSM technology.
I have no prior strong programming skills.
I would appreciate if i get to know the end to end technology associated and have any source code if it does exist.
As host says, Android has a built in mechanism to make calls over the available network.
You use an intent, specifically the 'Intent.ActionDial' or 'Intent.ACTION_CALL'.
Documentation is available here:
One thing to watch for is control returning to your app afterwards - take a look at this answer for a good example of how to do this by watching the call state with a listener: