thc.org:/root/docs/signaling_systems/

Specifications for the signaling systems C4, C5, C6, C7 and R2. A fine resource for those still involved in blue boxing and phreaking techniques.
	Name	Last Modified	Size	Inode
	../	02-Sep-2007 05:15:20	4k	0x62f83b77
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	Specification_Signaling_System_C4/	02-Sep-2007 05:15:19	4k	0xe323052b
	Specifications of the Signaling System C4.
	Specification_Signaling_System_C5/	02-Sep-2007 05:15:19	4k	0xdc8af2dc
	Specifications of the Signaling System C5.
	Specification_Signaling_System_C6/	02-Sep-2007 05:15:19	4k	0x0e5b297e
	Specifications of the Signaling System C6.
	Specification_Signaling_System_C7/	02-Sep-2007 05:15:19	4k	0x891d34d1
	Specifications of the Signaling System C7.
	Specification_Signaling_System_R2/	02-Sep-2007 05:15:19	4k	0x85913462
	Specifications of the Signaling System R2.

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