General
All Box Review
All Boxes
Alliance Teleconferencing
Alt.Phreaking FAQ
ANI Information
At&t 25-Pair Color Key
Better Homes and Blue Boxing Part 1
Better Homes and Blue Boxing Part 2
Better Homes and Blue Boxing Part 3
BIOC File Series
Branches of Signalling
Busy Line Verification
Common Phone Frequencies
Central Office Tours
Field Phreaking
How MaBell Works
How Phones Work
International Calling Codes
Loop Maintenance Op System
Loop Maintenance Op System Commands
Methods of Phreaking
Misc. Phreak Info
New School Phreaking
Nortel Millennium Payphones
NPAs
Ouside Loop Distribution Plant
Pac-Bell Manholes
PBXs
Phone Company Man Holes
Phreak Manual
The Primary InterLATA Carrier (PIC) Code Guide
Signalling Methods
Signalling Systems and Blue Boxing
SLC Cabinet Pics
Social Engineering Independent Telcos
Telco Acronyms
Trashing and Trucking
Understanding PBXs

Local
423-245-99XX Scan
423-288-99XX Scan
Local Central Offices

Switching
1AESS Common Input Msgs
Art of Telephony
AT&T 5ESS From Top to Bottom
Automatic Message Accounting
AXE10 Exchange Subsystems
AXE10 Subscriber Switching Subsystem
CCITT Hierarchy Nomenclature
CCITT4 Manual
CO Operations - Western Electric 1ESS, 1AESS
Comprehensive Look at Switching Systems
Cross Bar Switching Guide
Custom Local Area Signalling Services
Custom Local Area Signalling Services (CLASS)
Custom Local Area Signalling Services (CLASS Diff. Version)
Digital Multiplex System (DMS) 100
DMS Family of Digital Switching Systems
DMS-100 Maintenance
DMS-100 Manual
DMS-100 Switching System Interface
Electronic Switching System Faults
Electronic Switching System For Beginners
ESS1 & 1AESS
Feature for the 5ESS Switch
General AXE10
History of ESS
List of Switches
LiteSpan 2000 Units
Operator Service Position System
Peering into the Soul of ESS
Phreaker's Guide to ESS1 & 1A Switching Systems
Profile on ESS
R1 Signalling System Manual
Step by Step Switching Notes
Tao of 1AESS
Understanding the Digital Multiplexing System
Understanding the Digital Multiplexing System II