You are here: Home > Browse the Library > BSPs (Bell System) > Most Popular > BSP Categories by later Division Number (by Doc #) > 200 - 289 Divisions - Switching Systems > 227 Division - Gen'l & Testing Info

Check out the TCI YouTube channel here. Please subscribe!

Check here for the 2024 Telephone Shows

Folder 227 Division - Gen'l & Testing Info

General and Testing Information Applying to Intertoll Dialing, CAMA, AMA, ANI, "Touch-Tone" Calling, and Common Control Equipment Step-By-Step Systems

Documents

Toggle Title Date Download
pdf 227-000-000 I35 (646 downloads) Popular Download (pdf, 370 KB)
pdf 227-000-000 I38 Index Ocr (699 downloads) Popular Download (pdf, 1.24 MB)
pdf 227-000-000 I38 Jan68 - Numerical Index - Division 227 (919 downloads) Popular Download (pdf, 339 KB)
pdf 227-000-000SW Add IA (671 downloads) Popular Download (pdf, 624 KB)
pdf 227-000-000SW Add IB (645 downloads) Popular Download (pdf, 492 KB)
pdf 227-000-000SW Add. IB (916 downloads) Popular Download (pdf, 479 KB)
pdf 227-001-900PT IA (741 downloads) Popular Download (pdf, 65 KB)
pdf 227-200-901PT IC (661 downloads) Popular Download (pdf, 111 KB)
pdf 227-200-903PT IA (609 downloads) Popular Download (pdf, 85 KB)
pdf 227-206-500PT Add IC (648 downloads) Popular Download (pdf, 34 KB)
pdf 227-209-500PT Add IA (621 downloads) Popular Download (pdf, 36 KB)
pdf 227-221-900PT IA (696 downloads) Popular Download (pdf, 100 KB)
pdf 227-239-500 Add. I1 (961 downloads) Popular Download (pdf, 1.10 MB)
pdf 227-299-901PT IA (581 downloads) Popular Download (pdf, 115 KB)
pdf 227-400-302PT Add IA (722 downloads) Popular Download (pdf, 24 KB)
pdf 227-545-500 Add. I2 (872 downloads) Popular Download (pdf, 944 KB)
pdf 227-625-900PT IA (647 downloads) Popular Download (pdf, 397 KB)
pdf 227-625-901PT X1 IA (668 downloads) Popular Download (pdf, 77 KB)
pdf 227-625-902PT IB (640 downloads) Popular Download (pdf, 691 KB)
pdf 227-625-903PT IA (813 downloads) Popular Download (pdf, 1.91 MB)

New User?

Read the articles under "Introduction" in the black menu bar above.

Recent Contributors

Thanks for new documents from Jim Hurtle, Ed Palazzo, Paul Fassbender, Bruce Patterson, Remco Enthoven, Jon Kolger, Paul Ivester, Len Hicken, Fred Haynes, Kurt Rudolph, Wade ("Kellogg KITT"), the Connections Museum, Rick Walsh, Jeff Lamb, Jeremy Walters, Alan David, Dennis Hock, and Tim Griffin.

Please send a file to add your name to this list!

Who's online

We have 542 guests online