Automatic call answering, play sound out, and DTMF on Android

Question

Could it be possible now, which we can develop an Android application having the following requirement for its working steps

1. Automatic receive the call, then
2. Play some sound out to the caller, wait for DTMF response, then
3. Record the caller sound (in the case that they permit, by pressing 1 as DTMF response)
4. Callee can play back the recoreded sound later.

Thank for all answers in advance .....

Answer 1

None of that is possible, sorry.