JPS6427347A - Telephone set having holding alarm function - Google Patents

Telephone set having holding alarm function

Info

Publication number
JPS6427347A
JPS6427347A JP7157488A JP7157488A JPS6427347A JP S6427347 A JPS6427347 A JP S6427347A JP 7157488 A JP7157488 A JP 7157488A JP 7157488 A JP7157488 A JP 7157488A JP S6427347 A JPS6427347 A JP S6427347A
Authority
JP
Japan
Prior art keywords
holding
slave set
hooked
time
sender
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7157488A
Other languages
Japanese (ja)
Inventor
Yoshihiko Furuno
Nobukazu Kakeya
Teruyuki Taniguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP7157488A priority Critical patent/JPS6427347A/en
Publication of JPS6427347A publication Critical patent/JPS6427347A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent long time holding due to mistake by a slave set user being the source of holding by using the holding sender slave set to cause an alarm tone if the holding sender slave set is hooked off after a prescribed holding time is elapsed. CONSTITUTION:A control circuit 16 uses an extension loop detector 528 corresponding to a telephone slave set 512 being the holding sender so as to detect whether or not a telephone slave set 512 is hooked off and a holding count section 16c counts the holding time. If the slave set 512 is hooked off after one minute of holding elapses, a relay r55 corresponding to the slave set 512 is turned repetitively on/off by the control circuit 16 to cause the slave set 512 to raise a howler tone (alarm tone). Then the howler tone of the slave set 512 is stopped when the slave set 512 hooks on. Even when the slave set 512 remains hooked off, it is stopped after the holding time counted by the holding count section 16C elapses the preset time and the slave set is brought into the standby state. Thus, the long time holding is prevented.
JP7157488A 1987-04-20 1988-03-24 Telephone set having holding alarm function Pending JPS6427347A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7157488A JPS6427347A (en) 1987-04-20 1988-03-24 Telephone set having holding alarm function

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9700387 1987-04-20
JP7157488A JPS6427347A (en) 1987-04-20 1988-03-24 Telephone set having holding alarm function

Publications (1)

Publication Number Publication Date
JPS6427347A true JPS6427347A (en) 1989-01-30

Family

ID=26412677

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7157488A Pending JPS6427347A (en) 1987-04-20 1988-03-24 Telephone set having holding alarm function

Country Status (1)

Country Link
JP (1) JPS6427347A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04106698A (en) * 1990-08-28 1992-04-08 Hitachi Building Syst Eng & Service Co Ltd Remote monitoring device
US5172907A (en) * 1991-05-10 1992-12-22 Moore Business Forms, Inc. Compensation for skewing of documents during a rotation through a finite angle
US5234208A (en) * 1991-01-30 1993-08-10 Production Lines, Inc. Document feeder apparatus utilizing driven belts

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61295796A (en) * 1985-06-24 1986-12-26 Tamura Electric Works Ltd Key telephone set
JPS62287797A (en) * 1986-06-06 1987-12-14 Tamura Electric Works Ltd Simplified telephone exchanging equipment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61295796A (en) * 1985-06-24 1986-12-26 Tamura Electric Works Ltd Key telephone set
JPS62287797A (en) * 1986-06-06 1987-12-14 Tamura Electric Works Ltd Simplified telephone exchanging equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04106698A (en) * 1990-08-28 1992-04-08 Hitachi Building Syst Eng & Service Co Ltd Remote monitoring device
US5234208A (en) * 1991-01-30 1993-08-10 Production Lines, Inc. Document feeder apparatus utilizing driven belts
US5172907A (en) * 1991-05-10 1992-12-22 Moore Business Forms, Inc. Compensation for skewing of documents during a rotation through a finite angle

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