The concept is the targeted phone will be installed with this application. First, the application must detect if the phone has internet connection or not. If not, then it will be automatically in offline mode. This mode will access the phone's microphone and record the surrounding voice around the target phone also record any phone call conversation. The application also can immediately save the SMS (inbox, sent box, sender number) and outgoing/incoming phone call logs, so if the SMS/phone call is deleted right after their received/created, the application already save them. All the recording file and the SMS/phone call logs file will saved in specified folder and they will be send to email address right after the target phone has internet connection and then delete the files when it successfully sent. If the phone has internet connection then application will be in online mode, it will auto answer any Yahoo Messenger voice call that the YM ID already in the friend list. So the caller will hear the surrounding voice around the target phone, also can hear the target phone call conversation.
The application must be hidden, none of the operation will be showed. But it will be easy to uninstall.