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Test Number Directory

59 pages. Published and distributed by GTE California (GTC) to all Local Exchange Carrier (LEC) and lnterexchange Carrier (IXC) companies operating in the state of California, as well as GTE California Incorporated work groups. This directory lists test numbers for accessing test lines in GTC access tandems, sector tandems and end offices. Test lines are used for the purpose of operational and transmission testing of trunk circuits terminating in GTC offices. Contributed to the TCI Library by Steve Cichorsky. OCR & Admin: Paul Fassbender.

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