BE784090A - IMPROVEMENTS TO TELEPHONE SYSTEMS ( - Google Patents

IMPROVEMENTS TO TELEPHONE SYSTEMS (

Info

Publication number
BE784090A
BE784090A BE784090A BE784090A BE784090A BE 784090 A BE784090 A BE 784090A BE 784090 A BE784090 A BE 784090A BE 784090 A BE784090 A BE 784090A BE 784090 A BE784090 A BE 784090A
Authority
BE
Belgium
Prior art keywords
telephone systems
telephone
systems
Prior art date
Application number
BE784090A
Other languages
French (fr)
Inventor
H Siebel
K Wacker
Original Assignee
Int Standard Electric Corp
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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of BE784090A publication Critical patent/BE784090A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
BE784090A 1971-05-29 1972-05-29 IMPROVEMENTS TO TELEPHONE SYSTEMS ( BE784090A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712126816 DE2126816A1 (en) 1971-05-29 1971-05-29 Process for the production of connections in telephone systems with Fern sehtelefoneinnchtungen

Publications (1)

Publication Number Publication Date
BE784090A true BE784090A (en) 1972-11-29

Family

ID=5809316

Family Applications (1)

Application Number Title Priority Date Filing Date
BE784090A BE784090A (en) 1971-05-29 1972-05-29 IMPROVEMENTS TO TELEPHONE SYSTEMS (

Country Status (4)

Country Link
BE (1) BE784090A (en)
DE (1) DE2126816A1 (en)
FR (1) FR2139956B1 (en)
GB (1) GB1363329A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4539676A (en) * 1982-05-03 1985-09-03 At&T Bell Laboratories Bulk/interactive data switching system
GB2132446A (en) * 1982-12-01 1984-07-04 Standard Telephones Cables Ltd Telecommunication exchange system

Also Published As

Publication number Publication date
DE2126816A1 (en) 1972-12-14
FR2139956B1 (en) 1973-07-13
GB1363329A (en) 1974-08-14
FR2139956A1 (en) 1973-01-12

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