Exchange having a display apparatus for displaying calls...

Details Exchange having a display apparatus for displaying calls... Exchange having a display apparatus for displaying calls...

H - Electricity

04

M

344/18

H04M 3/42 (2006.01) H04M 3/60 (2006.01) H04M 3/62 (2006.01)

Patent

CA 2036049

ABSTRACT OF THE DISCLOSURE An exchange having a display apparatus for displaying the states of a plurality of subscriber terminals accommodated therein. The display apparatus comprises a display board having n indicator-keys, each for displaying the state of a subscriber terminal and an indication board having m indicator-keys, each for selectively indicating the states of a group of n subscriber terminals so that the states of a total of n x m subscriber terminals are displayed; and under control of the exchange, displays an incoming call and a recall terminated at an attendant console by keeping lit and flickering on and off, respectively the indicators concerned of both boards and when an indicator-key is pressed which is displaying an incoming call or a recall, causes the subscriber terminal and the station line concerned to be connected.

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