Accept call then play a pre-recorded voice message to caller

I receive quite a few non-work calls during my working day that often I am unable to take. I am not a big fan of voicemail, and I would much prefer if the caller would send me an SMS message or an email instead. I would therefore like to do the following on my Android phone: - disable my carrier's voicemail - record a voice message to a sound file - when my phone rings have an app automatically accept the call after X rings (or seconds), then; - play back the sound file to the caller, then; - hang up Is there a way to achieve this? Perhaps an app?