Android Call Blocker

Hello, I need a call blocker. The difference is then standart call blockers is a sound record. We will have sound records in different languages. When a person called who is in blacklist, the phone will answer and listen this sound record to caller. Microphone will be muted. Sound record will say: "Dear GSM member, Please don't call this person. If you continue to distrub, we may proceed against to you." Then close the phone. We have all sound records and graphics. Only the system will be written by you. If it is possible without root, we may start to project. Thank you.