Zenner now asked whether the charts she had been using to explain the mechanics of E911 system were "proprietary," too. Were they PUBLIC INFORMATION, these charts, all about PSAPs, ALIs, nodes, local end switches? Could he take the charts out in the street and show them to anybody, "without violating some proprietary notion that BellSouth has?"
Ms Williams showed some confusion, but finally agreed that the charts were, in fact, public.
"But isn't this what you said was basically what appeared in Phrack?"
Ms. Williams denied this.
Zenner now pointed out that the E911 Document as published in Phrack was only half the size of the original E911 Document (as Prophet had purloined it). Half of it had been deleted—edited by Neidorf.
Ms. Williams countered that "Most of the information that is in the text file is redundant."
Zenner continued to probe. Exactly what bits of knowledge in the Document were, in fact, unknown to the public? Locations of E911 computers? Phone numbers for telco personnel? Ongoing maintenance subcommittees? Hadn't Neidorf removed much of this?
Then he pounced. "Are you familiar with Bellcore Technical Reference Document TR-TSY-000350?" It was, Zenner explained, officially titled "E911 Public Safety Answering Point Interface Between 1-1AESS Switch and Customer Premises Equipment." It contained highly detailed and specific technical information about the E911 System. It was published by Bellcore and publicly available for about $20.
He showed the witness a Bellcore catalog which listed thousands of documents from Bellcore and from all the Baby Bells, BellSouth included. The catalog, Zenner pointed out, was free. Anyone with a credit card could call the Bellcore toll-free 800 number and simply order any of these documents, which would be shipped to any customer without question. Including, for instance, "BellSouth E911 Service Interfaces to Customer Premises Equipment at a Public Safety Answering Point."
Zenner gave the witness a copy of "BellSouth E911 Service Interfaces," which cost, as he pointed out, $13, straight from the catalog. "Look at it carefully," he urged Ms. Williams, "and tell me if it doesn't contain about twice as much detailed information about the E911 system of BellSouth than appeared anywhere in Phrack."