Comment Re:So.. How Does it Record Calls? (Score 1) 94
Using sipdroid with Google Voice or any SIP provider you can record calls locally, silently and if wanted, automatically. I assume other similar apps (like csipsimple) behave similarly, but I've only used sipdroid personally.
Google Voice alone will record calls if you press 4 during the call, but does not record locally and announces that you are recording to both sides of the call. You have to enable this feature first. See: http://support.google.com/voice/bin/answer.py?hl=en&answer=115082
As always, be familiar with the laws about recording telephone calls in your jurisdiction. If unsure, don't.