Larry gets calls from telemarketers all the time over his bluetooth headset. It's very annoying. The device announces he's getting a call from one of his contacts, and when he answers it, it's a "Google specialist." Leo says that it's really easy to spoof a caller ID to prevent him from knowing who's really calling. And it's unlikely they have access to Larry's contact list in order to do that. It's more likely that his Bluetooth headset is simply misassociating the incoming call with a person in his contact list because the number is close. Carrier forwarding may also be the problem.