Sometimes, with business or personal calls it is necessary to take note of what is being said in the conversation. Logic would suggest using a pen and paper to do this. However this is not always suitable and a recording of the call would be more beneficial.
The guys over at XDA Developers have created an application which can do just this, record your voice calls.
This is a FREE application and should work on most devices, although compatibility can not be guaranteed.
We do also suggest you let the contact at the other end of the line know that they are being recorded.