GB2093315A - Selective operation multi-party call telephone equipment and network - Google Patents

Selective operation multi-party call telephone equipment and network

Info

Publication number
GB2093315A
GB2093315A GB8212498A GB8212498A GB2093315A GB 2093315 A GB2093315 A GB 2093315A GB 8212498 A GB8212498 A GB 8212498A GB 8212498 A GB8212498 A GB 8212498A GB 2093315 A GB2093315 A GB 2093315A
Authority
GB
United Kingdom
Prior art keywords
network
party
substations
individual
telephone
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
GB8212498A
Other versions
GB2093315B (en
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.)
Tavkoezlesi Kutato Intezet
Original Assignee
Tavkoezlesi Kutato Intezet
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 Tavkoezlesi Kutato Intezet filed Critical Tavkoezlesi Kutato Intezet
Publication of GB2093315A publication Critical patent/GB2093315A/en
Application granted granted Critical
Publication of GB2093315B publication Critical patent/GB2093315B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
    • H04Q5/02—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with direct connection for all subscribers, i.e. party-line systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Multi-party call system service, industrial and subscriber's telephone equipment and network, where the traffic between the individual substations is realized without the central telephone exchange, furthermore, the through exchange traffic of individual substations of the multi-party networks is realized as well. The controlled switch if the system is inserted between the multi-party line and the telephone sets of the individual stations the control point of the switch is interconnected with the proper code memory. The substations are connected to the multi-party line in one state of the controlled switch, and it is switched off the line in the other. The service version of the telephone network, provided by the invention for alternatively selective or open operation, has doubled proper code memory in all individual substations.
GB8212498A 1980-04-29 1981-04-29 Selective operation multi-party call telephone equipment and network Expired GB2093315B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU801053A HU195713B (en) 1980-04-29 1980-04-29 Service and industrial telephone equipment to a network stringed to line for alternative or exclusive selective traffic

Publications (2)

Publication Number Publication Date
GB2093315A true GB2093315A (en) 1982-08-25
GB2093315B GB2093315B (en) 1984-05-10

Family

ID=10952650

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8212498A Expired GB2093315B (en) 1980-04-29 1981-04-29 Selective operation multi-party call telephone equipment and network

Country Status (5)

Country Link
DE (1) DE3146398C2 (en)
GB (1) GB2093315B (en)
HU (1) HU195713B (en)
SU (1) SU1304763A3 (en)
WO (1) WO1981003251A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4528424A (en) * 1983-06-24 1985-07-09 International Telephone And Telegraph Corporation Multiparty line adapter with privacy feature controlled by reversal of line polarity at a central power source

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2285775A1 (en) * 1974-09-17 1976-04-16 Berna Guy Intercommunication system with selective calling - uses codes signals to alert slave stations branched from common line
DE2607493C3 (en) * 1976-02-20 1978-08-03 Siemens Ag, 1000 Berlin Und 8000 Muenchen Special telephone system with company management

Also Published As

Publication number Publication date
HU195713B (en) 1988-06-28
WO1981003251A1 (en) 1981-11-12
SU1304763A3 (en) 1987-04-15
GB2093315B (en) 1984-05-10
DE3146398C2 (en) 1985-12-12
DE3146398T1 (en) 1982-09-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930429