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GB2148666B - Private automatic branch exchange - Google Patents

Private automatic branch exchange

Info

Publication number
GB2148666B
GB2148666B GB08422335A GB8422335A GB2148666B GB 2148666 B GB2148666 B GB 2148666B GB 08422335 A GB08422335 A GB 08422335A GB 8422335 A GB8422335 A GB 8422335A GB 2148666 B GB2148666 B GB 2148666B
Authority
GB
United Kingdom
Prior art keywords
branch exchange
automatic branch
private automatic
private
exchange
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.)
Expired
Application number
GB08422335A
Other versions
GB2148666A (en
GB8422335D0 (en
Inventor
Augustine Anthony Bermingham
Thomas Joseph Delaney
John Oliver Byrne
Richard Gerard Stokes
William Joseph Dowling
Aidan Gerard Walters
John Mary Walters
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.)
Lake Electronic Technologies Ltd
Original Assignee
Lake Electronic Technologies 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 Electronic Technologies Ltd filed Critical Lake Electronic Technologies Ltd
Publication of GB8422335D0 publication Critical patent/GB8422335D0/en
Publication of GB2148666A publication Critical patent/GB2148666A/en
Application granted granted Critical
Publication of GB2148666B publication Critical patent/GB2148666B/en
Expired legal-status Critical Current

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)
GB08422335A 1983-09-08 1984-09-04 Private automatic branch exchange Expired GB2148666B (en)

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 (3)

Publication Number Publication Date
GB8422335D0 GB8422335D0 (en) 1984-10-10
GB2148666A GB2148666A (en) 1985-05-30
GB2148666B true GB2148666B (en) 1987-09-09

Family

ID=11032812

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08422335A Expired GB2148666B (en) 1983-09-08 1984-09-04 Private automatic branch exchange

Country Status (3)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0213373A3 (en) * 1985-08-21 1988-10-05 Siemens Aktiengesellschaft Method for a communication system, especially a private branch telephone system, with different types of apparatuses as terminals in respect of the selection method
EP0235622A3 (en) * 1986-02-13 1989-03-29 Siemens Aktiengesellschaft Circuit arrangement for the powering of a telephone equipment comprising a main telephone set and a plurality of extension telephone sets
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 (en) * 1991-08-22 1999-06-28 キヤノン株式会社 Image communication device
CA2108223C (en) * 1993-10-12 1997-12-23 Deborah L. Pinard Continuous call forwarding to plural lines

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
BE900531A (en) 1985-01-02
IE54733B1 (en) 1990-01-17
IE832103L (en) 1985-03-08
GB2148666A (en) 1985-05-30
GB8422335D0 (en) 1984-10-10

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Legal Events

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

Effective date: 19920904