pdf SWBT Service And Equipment Manual [06] - Part VI: Dial PBX Systems Section 5 Attended Dial PBX Sys Popular

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SWBT Service And Equipment Manual [06] - Part VI: Dial PBX Systems Section 5 Attended Dial PBX Sys

14 MB. 28 pages. ca 1948 with later additions. Includes 740-type and related systems plus cord switchboards. Covers routing of calls, station operation, CO trunk arrangement and night switching. Other parts of this manual are in separate documents. The number in brackets [n] is the sort order for this document based on the documents currently in the Library. It may change as new sections of the manual are added.

Keywords: 552A; 556A; 605A; 607A; 606A; 552D; 607B; 740A; 740B; 740C; 740E; 740AX; 701A; 700C; 702A; tie line; supervision; central office trunk; out-dial; routing

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