IE54733B1 - Provate automatic branch exchange - Google Patents

Provate automatic branch exchange

Info

Publication number
IE54733B1
IE54733B1 IE210383A IE210383A IE54733B1 IE 54733 B1 IE54733 B1 IE 54733B1 IE 210383 A IE210383 A IE 210383A IE 210383 A IE210383 A IE 210383A IE 54733 B1 IE54733 B1 IE 54733B1
Authority
IE
Ireland
Prior art keywords
extension
branch exchange
automatic branch
line
private automatic
Prior art date
Application number
IE210383A
Other languages
English (en)
Other versions
IE832103L (en
Original Assignee
Lake Electronics 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 Lake Electronics Ltd filed Critical Lake Electronics Ltd
Priority to IE210383A priority Critical patent/IE54733B1/en
Priority to GB08422335A priority patent/GB2148666B/en
Priority to BE0/213616A priority patent/BE900531A/fr
Publication of IE832103L publication Critical patent/IE832103L/xx
Publication of IE54733B1 publication Critical patent/IE54733B1/en

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • 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
    • H04M3/46—Arrangements for calling a number of substations in a predetermined sequence until an answer is obtained

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Devices For Supply Of Signal Current (AREA)
IE210383A 1983-09-08 1983-09-08 Provate automatic branch exchange IE54733B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IE210383A IE54733B1 (en) 1983-09-08 1983-09-08 Provate automatic branch exchange
GB08422335A GB2148666B (en) 1983-09-08 1984-09-04 Private automatic branch exchange
BE0/213616A BE900531A (fr) 1983-09-08 1984-09-07 Central automatique prive.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE210383A IE54733B1 (en) 1983-09-08 1983-09-08 Provate automatic branch exchange

Publications (2)

Publication Number Publication Date
IE832103L IE832103L (en) 1985-03-08
IE54733B1 true IE54733B1 (en) 1990-01-17

Family

ID=11032812

Family Applications (1)

Application Number Title Priority Date Filing Date
IE210383A IE54733B1 (en) 1983-09-08 1983-09-08 Provate automatic branch exchange

Country Status (3)

Country Link
BE (1) BE900531A (fr)
GB (1) GB2148666B (fr)
IE (1) IE54733B1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0213373A3 (fr) * 1985-08-21 1988-10-05 Siemens Aktiengesellschaft Méthode pour un système de communication, en particulier un système de commutation téléphonique privé avec, en ce qui concerne la méthode de sélection, différents types d'appareils comme terminaux
EP0235622A3 (fr) * 1986-02-13 1989-03-29 Siemens Aktiengesellschaft Dispositif pour l'alimentation d'une installation téléphonique comprenant un poste téléphonique principal et plusieurs postes téléphoniques secondaires
IE870388L (en) * 1987-02-16 1988-08-16 Lake Electronic Tech Ringing voltage generator
GB9009100D0 (en) * 1990-04-23 1990-06-20 Southwestern Bell Telecom Uk L Improvements relating to telecommunications equipment
JP2912062B2 (ja) * 1991-08-22 1999-06-28 キヤノン株式会社 画像通信装置
CA2108223C (fr) * 1993-10-12 1997-12-23 Deborah L. Pinard Renvoi continu d'appels sur plusieurs lignes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2082421B (en) * 1980-08-06 1984-05-02 Gen Electric Co Ltd Telephone exchanges

Also Published As

Publication number Publication date
GB2148666B (en) 1987-09-09
GB2148666A (en) 1985-05-30
BE900531A (fr) 1985-01-02
IE832103L (en) 1985-03-08
GB8422335D0 (en) 1984-10-10

Similar Documents

Publication Publication Date Title
US4845743A (en) System for selectively receiving telephone calls
NZ233605A (en) Method of operating cellular transceiver from conventional telephone subset
EP0684722B1 (fr) Interface de distribution entre deux lignes de télécommunication et un poste d'abonné
US4338495A (en) Electronic key telephone systems
US3553382A (en) Toll call signalling and diverting system
KR940009476B1 (ko) 표준 전화기를 갖는 셀룰러 전화
US4188511A (en) Multi-link telephone intercom system
US4171469A (en) Abbreviated dialing system
US5956395A (en) Automatic redial method for telephone switching system
GB2148666A (en) Private automatic branch exchange
US4523056A (en) Telephone including resistive array for dialing and system for using such telephone
US5485508A (en) Hybrid communication devices with one telephone line
US3166642A (en) Signaling arrangement
US3728490A (en) Post pay telephone paystation circuit
US3851108A (en) Communication line supervisory circuit
US3626101A (en) Loop extender for subscribers connected to a central office by abnormally long telephone lines
US3259697A (en) Telephone signaling system
US4660219A (en) Extension ringing arrangement key telephone system
US2994742A (en) Telephone party line lockout system
GB2119204A (en) Telephone exchange line circuit providing special services
US3708634A (en) Telephone hand test set
US3450845A (en) Dial selective intercommunication system
CA1122338A (fr) Circuit d'interface-ligne pour systemes telephoniques a clavier
US3798384A (en) Ring trip circuit
US3836730A (en) Line card circuit for a key telephone system

Legal Events

Date Code Title Description
MM4A Patent lapsed