H - Electricity – 04 – M
Patent
H - Electricity
04
M
344/14
H04M 3/56 (2006.01) H04Q 3/54 (2006.01)
Patent
CA 1093194
COMMUNICATION SYSTEM CONFERENCING ARRANGEMENT Abstract of the Disclosure A communication conferencing arrangement is disclosed which relies upon the use of a plus/minus (+/-) nonlocking button followed by the operation of a button associated with any other line appearing at the station. If the operated line button is associated with a currently active line that line will be removed from the conference. If, however, the operated button is associated with a nonactive line (held or idle) then that line will be added, in conference fashion, with the communication leads of the enabling station. Provision is made to allow any number of added connections up to a preset maximum number at any station.
314980
Fenton Francis M.
Van Ornum James H.
Wang Tse L.
Weiss Carl D.
Kirby Eades Gale Baker
Western Electric Company Incorporated
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