JPS56122294A - Trunk line decentralized answer system - Google Patents

Trunk line decentralized answer system

Info

Publication number
JPS56122294A
JPS56122294A JP2544680A JP2544680A JPS56122294A JP S56122294 A JPS56122294 A JP S56122294A JP 2544680 A JP2544680 A JP 2544680A JP 2544680 A JP2544680 A JP 2544680A JP S56122294 A JPS56122294 A JP S56122294A
Authority
JP
Japan
Prior art keywords
telephone set
trunk line
control device
trunk
information
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
JP2544680A
Other languages
Japanese (ja)
Other versions
JPS6113438B2 (en
Inventor
Fumio Iijima
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2544680A priority Critical patent/JPS56122294A/en
Publication of JPS56122294A publication Critical patent/JPS56122294A/en
Publication of JPS6113438B2 publication Critical patent/JPS6113438B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625—Arrangements in the private branch exchange

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:To enable to use the general extension telephone set as a telephone set which can answer to the trunk line, by providing a memory device, where information indicating that the general extension telephone set is an extension telephone set which can answer to the trunk line is stored, and a trunk line incoming display device. CONSTITUTION:Application for the private branch exchange of the stored program control system is shown in the figure; and when a call comes from the trunk line, central control device CC detects incoming by scanning information of central office trunk COT of trunk control device TRC and stores this information and drives trunk line incoming display control device CLD to display information visibly and audibly by trunk line incoming display device LCB. Meanwhile, the call of the extension subscriber is detected by receiving scanning information of line circuit LC from line scanning control device LSC, and the calling extension telephone set is collated with the telephone set which is registered in the memory device preliminarily; and in case of registered telephone set A.TEL, switch network SW NET is operated from switch control device SW to connect COT and A.TEL, thereby making the answer service possible.
JP2544680A 1980-02-29 1980-02-29 Trunk line decentralized answer system Granted JPS56122294A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2544680A JPS56122294A (en) 1980-02-29 1980-02-29 Trunk line decentralized answer system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2544680A JPS56122294A (en) 1980-02-29 1980-02-29 Trunk line decentralized answer system

Publications (2)

Publication Number Publication Date
JPS56122294A true JPS56122294A (en) 1981-09-25
JPS6113438B2 JPS6113438B2 (en) 1986-04-14

Family

ID=12166226

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2544680A Granted JPS56122294A (en) 1980-02-29 1980-02-29 Trunk line decentralized answer system

Country Status (1)

Country Link
JP (1) JPS56122294A (en)

Also Published As

Publication number Publication date
JPS6113438B2 (en) 1986-04-14

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