Key telephone system capable of displaying a plurality of...

Details Key telephone system capable of displaying a plurality of... Key telephone system capable of displaying a plurality of...

H - Electricity

04

M

H04M 1/57 (2006.01) H04M 3/42 (2006.01) H04Q 3/58 (2006.01)

Patent

CA 2256837

In a key telephone system which is operable in response to a plurality of incoming calls sent through a plurality of subscriber lines and which has a plurality of key telephone sets, a plurality of outgoing telephone numbers which are included in the incoming calls are displayed on a display member of each key telephone set under control of a key service unit. Each of the subscriber line numbers may be displayed together with each outgoing telephone number in a time division fashion. A combination of the subscriber line number and the outgoing telephone number may be informed in the form of a synthesized audio signal synthesized by the use of a voice synthesizer.

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