I just tried to call from a land line and it automatically went into voice mail indicating that "the Google voice subscriber is not available to take your call, please leave a message and..."
Do not answer this, obviously a scam. Also, DO NOT PRESS 3 TO take your "name off the list"- typically, all this does is confirm to the spammer company that there is, in fact, someone on the other end of the line, and if anything, you get MORE calls. Or, Worse, sold to others as a confirmed active line.
I answered and got a recorded message about "my credit card account". They wanted me to call them at another # to get a new interest rate. Yeah, right.
Got a call on my cell number which I rarely give out. Interesting spin on this type of scam: "Hey, we spoke last week about lowering your interest rates and I think I've found a solution..." The recording sounded very convincing.