That's true too, you could tell that the voicemails came in but not the call, if you had the phone itself. We are told that the Mayer family and police did not have Rob's phone for approx one week. The statement was made from the beginning, IIRC, about the time the phone went dead....so to me that means it was conclusion was gained solely off of cell carrier evidence obtained by LE. Cell carriers can tell the customer's wife only so much, esp when it is a corporate owned phone. So that leads me to believe these are LE obtained facts. When they have a subpoena they get much more technical detail than customer service would have anyhow. Cust Serv can see how a call was terminated, for example (such as powered down or went dead or dropped call), they can see what tower the phone is currently pinging off of, but not pings before and after that moment, which can only be called up with a subpoena, not by an everyday customer.
