JPS5317207A - Howler outgoing system - Google Patents

Howler outgoing system

Info

Publication number
JPS5317207A
JPS5317207A JP9129676A JP9129676A JPS5317207A JP S5317207 A JPS5317207 A JP S5317207A JP 9129676 A JP9129676 A JP 9129676A JP 9129676 A JP9129676 A JP 9129676A JP S5317207 A JPS5317207 A JP S5317207A
Authority
JP
Japan
Prior art keywords
howler
outgoing system
make
outgoing
gradully
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.)
Granted
Application number
JP9129676A
Other languages
Japanese (ja)
Other versions
JPS5532311B2 (en
Inventor
Haruaki Hasegawa
Tokio Sato
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP9129676A priority Critical patent/JPS5317207A/en
Publication of JPS5317207A publication Critical patent/JPS5317207A/en
Publication of JPS5532311B2 publication Critical patent/JPS5532311B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/02—Calling substations, e.g. by ringing

Abstract

PURPOSE:To make the gradully incresing sound by varying the duty ratio of the pulse having the constant repeated frequency, and to make an alarm to the subscriber who leaves the receiver taken off.
JP9129676A 1976-08-02 1976-08-02 Howler outgoing system Granted JPS5317207A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9129676A JPS5317207A (en) 1976-08-02 1976-08-02 Howler outgoing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9129676A JPS5317207A (en) 1976-08-02 1976-08-02 Howler outgoing system

Publications (2)

Publication Number Publication Date
JPS5317207A true JPS5317207A (en) 1978-02-17
JPS5532311B2 JPS5532311B2 (en) 1980-08-23

Family

ID=14022497

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9129676A Granted JPS5317207A (en) 1976-08-02 1976-08-02 Howler outgoing system

Country Status (1)

Country Link
JP (1) JPS5317207A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63126363U (en) * 1987-02-10 1988-08-18
JPH0222948U (en) * 1988-07-29 1990-02-15

Also Published As

Publication number Publication date
JPS5532311B2 (en) 1980-08-23

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