Turning Phone Message into Sound File (.wav, etc)?

[WWGD]

Hi,
Someone tried to scam me a while back and they were stupid-enough to leave a message in my Android answering machine. Question: Is there a way of turning a phone message into a .wav, .mp3 or other type of sound file? I guess it depends on whether the message is stored in my end or in the provider's server and on how it is saved: In a sort of NoSQL database, or just thrown in in memory somehow? EDIT: I tried with a VOIP service, but could not make it work.
Thanks.

 

[jedishrfu]

Why not play it back and record with another device using an audio cable connect between devices?

Since your device is android it may the recording hidden somewhere as a file unless it was recorded elsewhere on an exchange or something.