ZA867349B - A method of and apparatus for intruding into an existing telephone connection between subscribers - Google Patents

A method of and apparatus for intruding into an existing telephone connection between subscribers

Info

Publication number
ZA867349B
ZA867349B ZA867349A ZA867349A ZA867349B ZA 867349 B ZA867349 B ZA 867349B ZA 867349 A ZA867349 A ZA 867349A ZA 867349 A ZA867349 A ZA 867349A ZA 867349 B ZA867349 B ZA 867349B
Authority
ZA
South Africa
Prior art keywords
offering
conference
switching matrix
telephone
audible
Prior art date
Application number
ZA867349A
Other languages
English (en)
Inventor
Helmut Leibersberger
Eduard Zwack
Hans Zander
Original Assignee
Siemens Ag
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6282150&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ZA867349(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of ZA867349B publication Critical patent/ZA867349B/xx

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0407—Selecting arrangements for multiplex systems for time-division multiplexing using a stored programme control

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Facsimile Heads (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Recording Measured Values (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
ZA867349A 1985-09-27 1986-09-26 A method of and apparatus for intruding into an existing telephone connection between subscribers ZA867349B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3534547 1985-09-27

Publications (1)

Publication Number Publication Date
ZA867349B true ZA867349B (en) 1987-05-27

Family

ID=6282150

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA867349A ZA867349B (en) 1985-09-27 1986-09-26 A method of and apparatus for intruding into an existing telephone connection between subscribers

Country Status (8)

Country Link
US (1) US4754478A (fi)
EP (1) EP0218862B2 (fi)
JP (1) JPS6281155A (fi)
AT (1) ATE50674T1 (fi)
AU (1) AU566361B2 (fi)
DE (1) DE3669247D1 (fi)
FI (1) FI83468C (fi)
ZA (1) ZA867349B (fi)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3916720A1 (de) * 1989-05-23 1990-11-29 Ant Nachrichtentech Verfahren zur erweiterung eines dreistufigen regelmaessigen koppelfeldes
US5265157A (en) * 1990-10-16 1993-11-23 International Business Machines Corporation Answer supervision and service selection
US5148474A (en) * 1991-08-21 1992-09-15 Nancy Haralambopoulos Interactive value-added telecommunications system and method
EP0561180A3 (en) * 1992-03-02 1994-06-15 Rolm Co Recording two or more party conversations
GB9319851D0 (en) * 1993-09-25 1993-11-10 Ibm Network call management
US5502762A (en) * 1994-06-10 1996-03-26 Andrew; Brian J. System and method for simultaneously controlling ringing at local and remote telephones
US5568541A (en) * 1994-06-21 1996-10-22 Greene; Leonard M. System and method for adding a surcharge to the cost/call for telephone solicitations
FR2722047B1 (fr) * 1994-06-29 1996-08-23 Cit Alcatel Reseau de commutation, utilisation et procede de croissance d'un tel reseau, et systeme comprenant un tel reseau
SE503392C2 (sv) * 1994-09-19 1996-06-03 Ericsson Telefon Ab L M Förenklad bearbetning vid fleranrop
ATE209416T1 (de) * 1995-03-10 2001-12-15 Siemens Ag Verfahren zur gezielten überwachung von fernsprechverbindungen in einer übergeordneten überwachungszentrale
US6614904B1 (en) * 2000-08-09 2003-09-02 Alcatel Apparatus and method for effecting a communication arrangement between switch arrays
DE10062342A1 (de) * 2000-12-14 2002-07-11 Eads Defence & Security Ntwk Verfahren und Vorrichtung zur Realisierung von Sprachkonferenzen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5853537B2 (ja) * 1979-04-17 1983-11-30 株式会社日立製作所 時分割通話路割込方式
JPS5612165A (en) * 1979-07-10 1981-02-06 Fujitsu Ltd Transmission system for interruption tone
JPS5652959A (en) * 1979-10-06 1981-05-12 Fujitsu Ltd Network connection system
US4445211A (en) * 1981-10-29 1984-04-24 Gte Automatic Electric Labs Inc. Arrangement for multiple custom calling
DE3246051A1 (de) * 1982-12-13 1984-06-14 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Schaltungsanordnung fuer die einspeisung von hoertoenen in bestehende verbindungen bei digital nach dem pcm-prinzip durchschaltenden fernsprechvermittlungsanlagen
US4544804A (en) * 1983-01-24 1985-10-01 At&T Bell Laboratories Conference control transfer arrangement

Also Published As

Publication number Publication date
FI83468B (fi) 1991-03-28
DE3669247D1 (de) 1990-04-05
EP0218862B2 (de) 1992-06-24
US4754478A (en) 1988-06-28
ATE50674T1 (de) 1990-03-15
FI863896A (fi) 1987-03-28
JPS6281155A (ja) 1987-04-14
AU566361B2 (en) 1987-10-15
AU6318686A (en) 1987-04-09
EP0218862A1 (de) 1987-04-22
EP0218862B1 (de) 1990-02-28
FI83468C (fi) 1991-07-10
FI863896A0 (fi) 1986-09-26

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