Join Date: Feb 2009
Location: The Dandelion City
The method Bell uses for verification is to update a reference number on the receiver that must be read back. They call it a "location id" but it has nothing to do with location. The number is updated frequently enough that it's difficult, but not impossible, to provide all the numbers at the same time. I am guessing, but SD probably uses a similar scheme. This can be avoided by connecting the receivers to a phone line for verification using caller ID.
At 20 I had a good mind. At 40 I had money. At 60 I've lost my mind and my money. Oh, to be 20 again. --Scary