JPS5612165A - Transmission system for interruption tone - Google Patents

Transmission system for interruption tone

Info

Publication number
JPS5612165A
JPS5612165A JP8720179A JP8720179A JPS5612165A JP S5612165 A JPS5612165 A JP S5612165A JP 8720179 A JP8720179 A JP 8720179A JP 8720179 A JP8720179 A JP 8720179A JP S5612165 A JPS5612165 A JP S5612165A
Authority
JP
Japan
Prior art keywords
trunk
tone
interruption
terminal
subscriber
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.)
Pending
Application number
JP8720179A
Other languages
Japanese (ja)
Inventor
Kazuaki Sato
Tadao Kotanino
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP8720179A priority Critical patent/JPS5612165A/en
Publication of JPS5612165A publication Critical patent/JPS5612165A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/20—Automatic or semi-automatic exchanges with means for interrupting existing connections; with means for breaking-in on conversations

Abstract

PURPOSE:To transmit an interruption tone to a fixed subscriber only and further to prevent leakage of a talk without interrupting subscribers in a talk during transmission of the interruption tone, by using a mixer trunk with fixed functions. CONSTITUTION:When an interruption request from subscriber A to subscriber B is generated while subscribers B and C are in a talk, switching controller 2 refers to data in memory 8 to discriminate the business of B. Controller 2 connects A by acquiring sound source trunk 3-0 to send an incoming enabling tone to A and further acquires mixer trunk 5 to connect B to terminal X, C to terminal Y and sound source trunk 3-1 to terminal Z. Consequently, the channel between B and C is secured and the interruption tone from trunk 3-1 is transmitted to only B. On detection of the hooking of B,the channel between A and B is formed and holding tone is sent from trunk 3-1 to C.
JP8720179A 1979-07-10 1979-07-10 Transmission system for interruption tone Pending JPS5612165A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8720179A JPS5612165A (en) 1979-07-10 1979-07-10 Transmission system for interruption tone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8720179A JPS5612165A (en) 1979-07-10 1979-07-10 Transmission system for interruption tone

Publications (1)

Publication Number Publication Date
JPS5612165A true JPS5612165A (en) 1981-02-06

Family

ID=13908352

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8720179A Pending JPS5612165A (en) 1979-07-10 1979-07-10 Transmission system for interruption tone

Country Status (1)

Country Link
JP (1) JPS5612165A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6281155A (en) * 1985-09-27 1987-04-14 ジ−メンス・アクチエンゲゼルシヤフト Interrupting and connecting method for additional telephone connecting path and voide signal in telephone connecting path during presented between two subscribers
US4802206A (en) * 1984-07-17 1989-01-31 Nitsuko Limited Calling system for enabling speech transmission from a caller to a called busy party in a telephone system
US4852158A (en) * 1987-01-29 1989-07-25 Kabushiki Kaisha Toshiba Telephone system allowing hold releasing request from central office line
EP0729284A2 (en) * 1995-02-27 1996-08-28 Alcatel SEL Aktiengesellschaft Mobile radio system with a base station comprising a monitoring device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4802206A (en) * 1984-07-17 1989-01-31 Nitsuko Limited Calling system for enabling speech transmission from a caller to a called busy party in a telephone system
JPS6281155A (en) * 1985-09-27 1987-04-14 ジ−メンス・アクチエンゲゼルシヤフト Interrupting and connecting method for additional telephone connecting path and voide signal in telephone connecting path during presented between two subscribers
US4852158A (en) * 1987-01-29 1989-07-25 Kabushiki Kaisha Toshiba Telephone system allowing hold releasing request from central office line
EP0729284A2 (en) * 1995-02-27 1996-08-28 Alcatel SEL Aktiengesellschaft Mobile radio system with a base station comprising a monitoring device
EP0729284A3 (en) * 1995-02-27 1997-09-10 Sel Alcatel Ag Mobile radio system with a base station comprising a monitoring device
US5826171A (en) * 1995-02-27 1998-10-20 Alcatel N.V. Mobile-radio system with a reconnaissance device contained in a base station

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