JPS5216106A - Telephone call unit - Google Patents

Telephone call unit

Info

Publication number
JPS5216106A
JPS5216106A JP9283875A JP9283875A JPS5216106A JP S5216106 A JPS5216106 A JP S5216106A JP 9283875 A JP9283875 A JP 9283875A JP 9283875 A JP9283875 A JP 9283875A JP S5216106 A JPS5216106 A JP S5216106A
Authority
JP
Japan
Prior art keywords
telephone call
call unit
bills
extension
receiving calls
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
JP9283875A
Other languages
Japanese (ja)
Other versions
JPS5422722B2 (en
Inventor
Shigeharu Tango
Hirotsugu Ikeda
Mitsuru Hamada
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.)
TOEI DENKI KOGYO KK
TOUEI DENKI KOUGIYOU KK
Original Assignee
TOEI DENKI KOGYO KK
TOUEI DENKI KOUGIYOU KK
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 TOEI DENKI KOGYO KK, TOUEI DENKI KOUGIYOU KK filed Critical TOEI DENKI KOGYO KK
Priority to JP9283875A priority Critical patent/JPS5216106A/en
Publication of JPS5216106A publication Critical patent/JPS5216106A/en
Publication of JPS5422722B2 publication Critical patent/JPS5422722B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:In a telephone call unit to generate calling signals for extension bills, to get a concrete circuit to audibly identify receiving calls.
JP9283875A 1975-07-29 1975-07-29 Telephone call unit Granted JPS5216106A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9283875A JPS5216106A (en) 1975-07-29 1975-07-29 Telephone call unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9283875A JPS5216106A (en) 1975-07-29 1975-07-29 Telephone call unit

Publications (2)

Publication Number Publication Date
JPS5216106A true JPS5216106A (en) 1977-02-07
JPS5422722B2 JPS5422722B2 (en) 1979-08-08

Family

ID=14065562

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9283875A Granted JPS5216106A (en) 1975-07-29 1975-07-29 Telephone call unit

Country Status (1)

Country Link
JP (1) JPS5216106A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5833673U (en) * 1981-08-29 1983-03-04 株式会社ユ−シン back door cylinder lock
JPS5847878A (en) * 1981-09-16 1983-03-19 株式会社大井製作所 Door lock for automobile

Also Published As

Publication number Publication date
JPS5422722B2 (en) 1979-08-08

Similar Documents

Publication Publication Date Title
JPS5422704A (en) Cordless telephone system
JPS5216106A (en) Telephone call unit
JPS5283102A (en) Abbreviated dialing unit
JPS51144503A (en) Telephone set
JPS5423304A (en) Cordless telephone system
JPS51114003A (en) Automatic information unit
JPS51115712A (en) Call detection method in automatic telephone exchange
JPS5213708A (en) Telephone set
JPS5393710A (en) Connecting system for private line
JPS51144504A (en) Telephone set
JPS5324207A (en) Key telephone set
JPS51112214A (en) Mobile radio telephone
JPS5355905A (en) Automatic dialing system
JPS5368902A (en) Telephone circuit calling device
JPS5394805A (en) Communication terminal equipment
JPS5392610A (en) Attachment connection circuit
JPS5437608A (en) Extension incoming automatic selection system
JPS51121202A (en) Direct separate selective calling method
JPS51144502A (en) Telephone set
JPS51141507A (en) Speaker talking system
JPS53132208A (en) Delivery system for call signal
JPS53134305A (en) Telephone set of dial operation
JPS5224403A (en) Extension calling circuit of key telephone set
CA1031478A (en) Conference call circuit for use in a key telephone system
JPS5216249A (en) Test system for line and subscriber call meter