The BIOC Files

This was a very popular peice of text back in the 80's. While is quite outdated now, its still fun to read and remember...

• Part I: Long distance services, 950 exg., calling cards, and 1-800 services.

• Part II: CN/A, loops, ANI, ringback, misc.

• Part III: North American numbering plan, area codes, TWX, 700, 800, 900, CO Codes, 950, 976, N11 codes, and international dialing.

• Part IV: Operators, office hierarchy, and switching equipment.

• Part V: Wiring, voltage, ringing, dialing, etc...

• Part VI: Fortress fones, TSPS and ACTS, greenboxes, etc...

• Part VII: Genesis, in-band signaling, history, detection, CCIS, pink noise, applications, operator & other codes.

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