I want a calling app that can call via app to mobile means Call via smartphone to (keypad phone) not matter call via internet or without internet, But You need to focus only on 2 topics
1. first one is call via internet or without internet(both are acceptable) via app to mobile(keypad mobile)
2. second one is without showing our real no.
What you are looking for will need a intermediate gateway a number from which call is initiated it's not possible to connect from online to offline yet