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Specifications for the signaling systems C4, C5, C6, C7 and R2. A fine resource for those still involved in blue boxing and phreaking techniques.

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- ../    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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