Difference between revisions of "Category:Telephone switching systems"

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IEEE GHN Category
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[[Image:Telephone Switching Systems B Board Machine Originated Calls.jpg|thumb|right| A "B" Board telephone switching machine for terminating  calls to the manual office and redirect to the automatic line]]
  
IEEE GHN Category [[Category:Telephony]]
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[[Category:Telephony|{{PAGENAME}}]]

Revision as of 22:58, 15 February 2012

IEEE GHN Category

A "B" Board telephone switching machine for terminating calls to the manual office and redirect to the automatic line