Speaking on Deep Background, the Press Secretary whispered: > > > I'm told that most CALEA warrants only authorize a pen register, not an > actual tap. Pen registers are trivial to implement, since the provider's > software undoubtedly has an option to produce CDRs for billing or planning > purposes. Unfortunately this doesn't cover the case of purely P2P calls > which don't have a VoIP provider; if the suspect is using such software, the > only way to produce a pen register is with a tap.
Note that the requirements for a trap/trace aka pen register are a fraction of those for a Title III intercept. See http://www.usenix.org/events/sec01/eckenwiler/index.htm for at least an introduction.. -- A host is a host from coast to [EMAIL PROTECTED] & no one will talk to a host that's close........[v].(301) 56-LINUX Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433