[Bogey78O]

The minute a final digit is hit on a keypad the RBOC's switch knows from where and to who the call is made. The whole scenario of taking time to establish a trace is hollywood poppycock. If the trace can't be done right there the information can be gleamed from the switch with no hassle.

[KsSunflower]

What type of phone call is cannot be traced?

[eastforker]

If I had a disposable cell phone,I could ride around the beltway as I talked and the only thing you would know is that I was somewhere on the beltway with thousand of other commuters.