The articles below have a plethora of data that covers various elements of both phreaking and hacking.
Hacking Ford Credit Net
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The ericcson hack faq
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The Dynatel Subscriber Loop Analyzer
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US Switching Networks
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Computer Telephony Integration
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Cellular Mobile Carrier Intrcon.
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hacking the cindi VMB
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basic cellular guide
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Phone Cabling with BIX blocks and AT&T frames
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Blue Boxing Through CitiBank Venezuela
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AT&T inflight satellite phones
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Hacking the AS 400 os
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About ANI
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the analog cellular system
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Hacking AllTel VMBs
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Advanced Communications Tech. Satellite
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How to setup 888 #'s
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IBMs 4690 mainframe
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intro to datapac
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Inpho on 1Connect VMBs
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Data on 10 codes
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more on GSM
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