Title:
KEY TELEPHONE SYSTEM
Document Type and Number:
Japanese Patent JPH0795642
Kind Code:
A
Abstract:
PURPOSE: To recognize a caller by setting a key telephone system to a reply state after a predetermined time when a call comes from an external line to the specific key telephone system.
CONSTITUTION: An incoming call detection section 11 of a key telephone main set 1 detects the arrival of a call to a key telephone set 3 designated from an external line and when a tone ringer section 12 rings a bell, a control section 13 monitors the number of times of bell ringing. When the key telephone set 3 is forcibly set to a reply state when the telephone set 3 does not reply even when the bell rings for a predetermined number of times, a speaker 32 of the key telephone set 3 is energized and outputs the sound from a caller.
Inventors:
HIRAMATSU TAKUYA
Application Number:
JP23795893A
Publication Date:
April 07, 1995
Filing Date:
September 24, 1993
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H04M1/60; H04M1/64; H04Q3/58; (IPC1-7): H04Q3/58; H04M1/60; H04M1/64
Attorney, Agent or Firm:
Akira Kobiji (2 outside)