JPS56131290A - Trunk line holding system - Google Patents

Trunk line holding system

Info

Publication number
JPS56131290A
JPS56131290A JP3426280A JP3426280A JPS56131290A JP S56131290 A JPS56131290 A JP S56131290A JP 3426280 A JP3426280 A JP 3426280A JP 3426280 A JP3426280 A JP 3426280A JP S56131290 A JPS56131290 A JP S56131290A
Authority
JP
Japan
Prior art keywords
holding
subscriber
trunk line
trunk
ext
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
JP3426280A
Other languages
Japanese (ja)
Other versions
JPS5924596B2 (en
Inventor
Hidekazu Igarashi
Hanji Kobayashi
Norio Nagai
Yukio Shigeta
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.)
Meisei Electric Co Ltd
Original Assignee
Meisei 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 Meisei Electric Co Ltd filed Critical Meisei Electric Co Ltd
Priority to JP3426280A priority Critical patent/JPS5924596B2/en
Publication of JPS56131290A publication Critical patent/JPS56131290A/en
Publication of JPS5924596B2 publication Critical patent/JPS5924596B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/58—Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:To increase the versatility of a subscriber in responding to a trunk line by monitoring ineffective holding through holding the trunk line optionally in addition to trunk line holding in the connecting process during call-back operation, and by enabling the following held response to be connected to any subscriber. CONSTITUTION:When an incoming is executed to trunk COT of trunk line of an automatic switchboard and subscriber EXT-A performs call-back connecting operation, trunk COT performs call-back holding operation. Next, when subscriber EXT-A dials a special number, this special number is stored in connected originating register OR, and central controller CC detects the special number in register OR to send a transition signal in a holding state from controller CC to trunk COT through software processing. Then, the call-back connection of subscriber EXT-A can be made with any circuit such as register OR. Then, controller CC monitors a long-time holding state and, when it continues for a long time, releases the holding.
JP3426280A 1980-03-18 1980-03-18 Central line holding system Expired JPS5924596B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3426280A JPS5924596B2 (en) 1980-03-18 1980-03-18 Central line holding system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3426280A JPS5924596B2 (en) 1980-03-18 1980-03-18 Central line holding system

Publications (2)

Publication Number Publication Date
JPS56131290A true JPS56131290A (en) 1981-10-14
JPS5924596B2 JPS5924596B2 (en) 1984-06-11

Family

ID=12409251

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3426280A Expired JPS5924596B2 (en) 1980-03-18 1980-03-18 Central line holding system

Country Status (1)

Country Link
JP (1) JPS5924596B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59152886U (en) * 1983-03-31 1984-10-13 株式会社田村電機製作所 button telephone device
JPS60111594A (en) * 1983-11-21 1985-06-18 Miyakawa Seisakusho:Kk Re-response system for holding circuit
JPS61253967A (en) * 1985-05-02 1986-11-11 Nec Corp Holding system for call in communication

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59152886U (en) * 1983-03-31 1984-10-13 株式会社田村電機製作所 button telephone device
JPS646619Y2 (en) * 1983-03-31 1989-02-21
JPS60111594A (en) * 1983-11-21 1985-06-18 Miyakawa Seisakusho:Kk Re-response system for holding circuit
JPH022343B2 (en) * 1983-11-21 1990-01-17 Myakawa Seisakusho Kk
JPS61253967A (en) * 1985-05-02 1986-11-11 Nec Corp Holding system for call in communication

Also Published As

Publication number Publication date
JPS5924596B2 (en) 1984-06-11

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