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FI874140A - ELEKTRONISK HAOLLKRETS FOER VIA EN ABONNENTLEDNING MATADE TVAOVAEGSTELEFONER. - Google Patents

ELEKTRONISK HAOLLKRETS FOER VIA EN ABONNENTLEDNING MATADE TVAOVAEGSTELEFONER. Download PDF

Info

Publication number
FI874140A
FI874140A FI874140A FI874140A FI874140A FI 874140 A FI874140 A FI 874140A FI 874140 A FI874140 A FI 874140A FI 874140 A FI874140 A FI 874140A FI 874140 A FI874140 A FI 874140A
Authority
FI
Finland
Prior art keywords
tvaovaegstelefoner
matade
haollkrets
abonnentledning
elektronisk
Prior art date
Application number
FI874140A
Other languages
Finnish (fi)
Other versions
FI874140A0 (en
Inventor
Wolfgang Strzeletz
Original Assignee
Siemens Ag
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 filed Critical Siemens Ag
Publication of FI874140A0 publication Critical patent/FI874140A0/en
Publication of FI874140A publication Critical patent/FI874140A/en

Links

Classifications

    • 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
    • H04M3/58—Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
    • H04M1/312—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses pulses produced by electronic circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
FI874140A 1986-09-23 1987-09-22 ELEKTRONISK HAOLLKRETS FOER VIA EN ABONNENTLEDNING MATADE TVAOVAEGSTELEFONER. FI874140A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3632200 1986-09-23

Publications (2)

Publication Number Publication Date
FI874140A0 FI874140A0 (en) 1987-09-22
FI874140A true FI874140A (en) 1988-03-24

Family

ID=6310099

Family Applications (1)

Application Number Title Priority Date Filing Date
FI874140A FI874140A (en) 1986-09-23 1987-09-22 ELEKTRONISK HAOLLKRETS FOER VIA EN ABONNENTLEDNING MATADE TVAOVAEGSTELEFONER.

Country Status (4)

Country Link
EP (1) EP0264644A3 (en)
AU (1) AU600523B2 (en)
FI (1) FI874140A (en)
IN (1) IN167984B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN164858B (en) * 1986-09-11 1989-06-17 Siemens Ag
ES2046112B1 (en) * 1992-04-24 1996-11-16 Revenga Ingenieros S A TELEPHONE EQUIPMENT FOR DIRECT LINES POINT TO POINT.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7907134A (en) * 1979-09-25 1981-03-27 Ericsson Telefon Mij TELEPHONE INSTALLATION OF THE TYPE INDICATED AS A STAR POINT INSTALLATION.
AT377606B (en) * 1981-08-07 1985-04-10 Dynamit Nobel Ag EXPLOSIVE MOMENT
US4490583A (en) * 1983-02-14 1984-12-25 Circom, Inc. Plural line telephone controller
JPS6152053A (en) * 1984-08-20 1986-03-14 Nec Corp Dial impulse transmission circuit
IN164858B (en) * 1986-09-11 1989-06-17 Siemens Ag

Also Published As

Publication number Publication date
EP0264644A2 (en) 1988-04-27
FI874140A0 (en) 1987-09-22
AU7883587A (en) 1988-03-31
IN167984B (en) 1991-01-19
EP0264644A3 (en) 1989-06-14
AU600523B2 (en) 1990-08-16

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: SIEMENS AKTIENGESELLSCHAFT