IL62478A0 - Method and apparatus for transmission of signals in telephone exchanges - Google Patents

Method and apparatus for transmission of signals in telephone exchanges

Info

Publication number
IL62478A0
IL62478A0 IL62478A IL6247881A IL62478A0 IL 62478 A0 IL62478 A0 IL 62478A0 IL 62478 A IL62478 A IL 62478A IL 6247881 A IL6247881 A IL 6247881A IL 62478 A0 IL62478 A0 IL 62478A0
Authority
IL
Israel
Prior art keywords
signals
transmission
telephone exchanges
exchanges
telephone
Prior art date
Application number
IL62478A
Original Assignee
Siemens Ag Albis
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 Siemens Ag Albis filed Critical Siemens Ag Albis
Publication of IL62478A0 publication Critical patent/IL62478A0/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
    • 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
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/39—Signalling arrangements; Manipulation of signalling currents using coded pulse groups

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Telephonic Communication Services (AREA)
  • Devices For Supply Of Signal Current (AREA)
IL62478A 1980-03-27 1981-03-25 Method and apparatus for transmission of signals in telephone exchanges IL62478A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2396/80A CH649183A5 (en) 1980-03-27 1980-03-27 SIGNALING PROCEDURE FOR TELECOMMUNICATION, IN PARTICULAR TELECOMMUNICATION SYSTEMS.

Publications (1)

Publication Number Publication Date
IL62478A0 true IL62478A0 (en) 1981-05-20

Family

ID=4232795

Family Applications (1)

Application Number Title Priority Date Filing Date
IL62478A IL62478A0 (en) 1980-03-27 1981-03-25 Method and apparatus for transmission of signals in telephone exchanges

Country Status (4)

Country Link
EP (1) EP0036979B1 (en)
CH (1) CH649183A5 (en)
DE (1) DE3162571D1 (en)
IL (1) IL62478A0 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH600714A5 (en) * 1974-09-24 1978-06-30 Siemens Ag Albis
CH624808A5 (en) * 1977-10-17 1981-08-14 Siemens Ag Albis Method for feeding a ringing signal into subscriber stations of a telecommunications switching system, in particular a telephone switching system
CH624519A5 (en) * 1977-10-17 1981-07-31 Siemens Ag Albis Circuit arrangement for controlling the subscriber stations of a telecommunications switching system, in particular a telephone switching system
US4133982A (en) * 1977-12-23 1979-01-09 Gte Automatic Electric Laboratories Incorporated AC supervisory signal detector circuit

Also Published As

Publication number Publication date
EP0036979A1 (en) 1981-10-07
DE3162571D1 (en) 1984-04-19
CH649183A5 (en) 1985-04-30
EP0036979B1 (en) 1984-03-14

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