Title:
PRIVATE EXCHANGE
Document Type and Number:
Japanese Patent JP3418433
Kind Code:
B2
Abstract:
PURPOSE: To accurately discriminate which place a call comes from even in circumstance where it is difficult to hear the contents of a sound message.
CONSTITUTION: A sound output part 5 where voice messages (including an intercom tone and a chime tone) different by sound qualities are stored is provided in a subscriber's private exchange and is controlled by a microprocessor 14, and sound messages different by sound qualities are read out from the sound output part 5 in accordance with the transmission source and are outputted as sound by modular jacks (SPMJ) 10 and 11 with speakers at the time of incoming from outside lines TT1 and TT2, incoming from an intercom slave machine 3, and security alarm of a security device 15. Consequently, the classification of incoming is momentarily recognized by the sound quality even if semantic contents of the sound message are missed before off-hook.
Inventors:
Toshiya Onizuka
Teruyuki Taniguchi
Teruyuki Taniguchi
Application Number:
JP26344293A
Publication Date:
June 23, 2003
Filing Date:
October 21, 1993
Export Citation:
Assignee:
Sekisui Chemical Co.,Ltd.
International Classes:
H04M3/42; H04M9/00; H04M11/04; H04Q3/58; (IPC1-7): H04M3/42; H04M9/00; H04M11/04; H04Q3/58
Domestic Patent References:
| JP4258070A | ||||
| JP3245693A | ||||
| JP435142A | ||||
| JP5773554A | ||||
| JP6164734A | ||||
| JP556162A |
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