I have very simple specifications,t
1. Application running hidden in Android phones
2. Application Start Automatic when phone start
3. Record call (voice) when mobile makes a call or receive a call - file name should be timestamp and extension of file name as you like.
4. Configurable to active and inactive recording
5. Should have a password to access the configuration.
6- upload calls on cloud like box , dropbox or google drive
Anything you want ask - send pm