JPS54124608A - Key telephone control system - Google Patents

Key telephone control system

Info

Publication number
JPS54124608A
JPS54124608A JP3208778A JP3208778A JPS54124608A JP S54124608 A JPS54124608 A JP S54124608A JP 3208778 A JP3208778 A JP 3208778A JP 3208778 A JP3208778 A JP 3208778A JP S54124608 A JPS54124608 A JP S54124608A
Authority
JP
Japan
Prior art keywords
service
extension
special
permitted
register
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
JP3208778A
Other languages
Japanese (ja)
Other versions
JPS5919504B2 (en
Inventor
Yoshio Ariizumi
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP3208778A priority Critical patent/JPS5919504B2/en
Publication of JPS54124608A publication Critical patent/JPS54124608A/en
Publication of JPS5919504B2 publication Critical patent/JPS5919504B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:To obtain the same new service as a general telephone set in the extension of a key telephone system unit by giving an extension ID file to an exchange. CONSTITUTION:Key telephone system controller 22 monitors originating dials from the extension; and when detecting the special number dial requesting a special service, controller 22 adds the extension number to this special number and sends them to general originating register 26 through channel 1. When discriminating this special number, exchange 24 collates contents of ID file 25 and decides whether the service execution is permitted or not. In case that the service is not permitted, audio response unit 28 for talkie informs the originator of the cause. In case that the service is permitted, connection is switched to register 27 for special service. Then, the second dial tone is sent to extension 21, and data required for the service is sent from extension 21 to register 27, thus advancing the following connection processing. As regards the incoming operation, service is possible similarly.
JP3208778A 1978-03-20 1978-03-20 button phone control method Expired JPS5919504B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3208778A JPS5919504B2 (en) 1978-03-20 1978-03-20 button phone control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3208778A JPS5919504B2 (en) 1978-03-20 1978-03-20 button phone control method

Publications (2)

Publication Number Publication Date
JPS54124608A true JPS54124608A (en) 1979-09-27
JPS5919504B2 JPS5919504B2 (en) 1984-05-07

Family

ID=12349088

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3208778A Expired JPS5919504B2 (en) 1978-03-20 1978-03-20 button phone control method

Country Status (1)

Country Link
JP (1) JPS5919504B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60165153A (en) * 1984-02-07 1985-08-28 Nec Corp Composite exchange control system
JPS6188693A (en) * 1984-10-05 1986-05-06 Tamura Electric Works Ltd Composite key telephone set

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60165153A (en) * 1984-02-07 1985-08-28 Nec Corp Composite exchange control system
JPS6188693A (en) * 1984-10-05 1986-05-06 Tamura Electric Works Ltd Composite key telephone set
JPH0420318B2 (en) * 1984-10-05 1992-04-02 Tamura Electric Works Ltd

Also Published As

Publication number Publication date
JPS5919504B2 (en) 1984-05-07

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