AT333853B - CIRCUIT ARRANGEMENT FOR GENERATING A FIRST CALL AND FURTHER CALL USING AN AC CURRENT CURRENT IN A TELEPHONE SYSTEM, IN PARTICULAR TELEPHONE EXTENSION SYSTEM - Google Patents

CIRCUIT ARRANGEMENT FOR GENERATING A FIRST CALL AND FURTHER CALL USING AN AC CURRENT CURRENT IN A TELEPHONE SYSTEM, IN PARTICULAR TELEPHONE EXTENSION SYSTEM

Info

Publication number
AT333853B
AT333853B AT929574A AT929574A AT333853B AT 333853 B AT333853 B AT 333853B AT 929574 A AT929574 A AT 929574A AT 929574 A AT929574 A AT 929574A AT 333853 B AT333853 B AT 333853B
Authority
AT
Austria
Prior art keywords
current
call
telephone
generating
circuit arrangement
Prior art date
Application number
AT929574A
Other languages
German (de)
Other versions
ATA929574A (en
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 ATA929574A publication Critical patent/ATA929574A/en
Application granted granted Critical
Publication of AT333853B publication Critical patent/AT333853B/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
AT929574A 1973-12-14 1974-11-20 CIRCUIT ARRANGEMENT FOR GENERATING A FIRST CALL AND FURTHER CALL USING AN AC CURRENT CURRENT IN A TELEPHONE SYSTEM, IN PARTICULAR TELEPHONE EXTENSION SYSTEM AT333853B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2362328A DE2362328C2 (en) 1973-12-14 1973-12-14 Circuit arrangement for generating the first call and the further call in telephone systems, in particular in telephone branch exchange systems

Publications (2)

Publication Number Publication Date
ATA929574A ATA929574A (en) 1976-04-15
AT333853B true AT333853B (en) 1976-12-10

Family

ID=5900822

Family Applications (1)

Application Number Title Priority Date Filing Date
AT929574A AT333853B (en) 1973-12-14 1974-11-20 CIRCUIT ARRANGEMENT FOR GENERATING A FIRST CALL AND FURTHER CALL USING AN AC CURRENT CURRENT IN A TELEPHONE SYSTEM, IN PARTICULAR TELEPHONE EXTENSION SYSTEM

Country Status (11)

Country Link
AT (1) AT333853B (en)
BE (1) BE823333A (en)
CH (1) CH588195A5 (en)
DE (1) DE2362328C2 (en)
DK (1) DK139499C (en)
FR (1) FR2254918B1 (en)
GB (1) GB1482366A (en)
IT (1) IT1026913B (en)
LU (1) LU71469A1 (en)
NL (1) NL158672B (en)
SE (1) SE7415708L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2538597C2 (en) * 1975-08-29 1982-01-14 Siemens AG, 1000 Berlin und 8000 München Method and circuit arrangement for carrying out the method for telecommunications, in particular telephone systems with a first call and subsequent call to a desired subscriber
DE2935119C2 (en) * 1979-08-30 1981-09-24 Siemens AG, 1000 Berlin und 8000 München Indirectly controlled switching system, in particular telephone branch exchange, with a central control unit and with monitoring of the selected remote exchange code
DE3218506A1 (en) * 1982-04-02 1983-10-13 Siemens AG, 1000 Berlin und 8000 München CIRCUIT ARRANGEMENT FOR TELECOMMUNICATION SWITCHING SYSTEMS, IN PARTICULAR TELEPHONE SWITCHING SYSTEMS, WITH SWITCHING DEVICES FOR SIGNALING

Also Published As

Publication number Publication date
DK139499C (en) 1979-08-06
FR2254918A1 (en) 1975-07-11
DE2362328C2 (en) 1979-11-15
LU71469A1 (en) 1975-06-11
BE823333A (en) 1975-06-13
ATA929574A (en) 1976-04-15
CH588195A5 (en) 1977-05-31
DE2362328B1 (en) 1975-03-20
DK139499B (en) 1979-02-26
SE7415708L (en) 1975-06-16
IT1026913B (en) 1978-10-20
NL158672B (en) 1978-11-15
GB1482366A (en) 1977-08-10
FR2254918B1 (en) 1979-10-12
DK650874A (en) 1975-08-11
NL7416008A (en) 1975-06-17

Similar Documents

Publication Publication Date Title
SE7606688L (en) DIGITAL MULTI-TONE GENERATOR FOR SIGNALING IN THE PHONE
SE412505B (en) DEVICE IN ELECTRICAL TELEPHONE AND METHODOLOGY
AT333853B (en) CIRCUIT ARRANGEMENT FOR GENERATING A FIRST CALL AND FURTHER CALL USING AN AC CURRENT CURRENT IN A TELEPHONE SYSTEM, IN PARTICULAR TELEPHONE EXTENSION SYSTEM
AT330304B (en) CIRCUIT ARRANGEMENT FOR THE IGNITION OF AN ELECTRIC VALVE, IN PARTICULAR A THYRISTOR
SE392557B (en) SUBSCRIBER TELEPHONE
NL7512548A (en) AUTOMATICALLY OPERATING TELEPHONE CALL GENERATOR.
SE7514036L (en) SPEAKING TELEPHONE SYSTEM
CH526893A (en) Method and circuit arrangement for switching off calls in telecommunication systems, in particular telephone systems
CH410069A (en) Circuit arrangement for testing lines in telecommunication systems, in particular telephone systems
ATA183778A (en) CIRCUIT ARRANGEMENT FOR CALL VOLTAGE IN TELEPHONE SWITCHING SYSTEMS
NL7606708A (en) MODULED INDUCTION GENERATOR SYSTEM AND BIPOLAR INVERTER CIRCUIT FOR THIS.
AT343210B (en) CIRCUIT ARRANGEMENT FOR GENERATING SWITCHING VOLTAGES
CH486813A (en) Circuit arrangement for generating or correcting dialing pulses and switch indicators in telecommunication systems, in particular telephone systems
ZA756365B (en) Circuit arrangement for telephone subset
AT336696B (en) CIRCUIT ARRANGEMENT FOR AN INDIRECTLY CONTROLLED SWITCHING SYSTEM, IN PARTICULAR TELEPHONE SWITCHING SYSTEM
BR7503049A (en) TELEPHONE CONFERENCE METHOD
ATA48275A (en) CIRCUIT ARRANGEMENT, IN PARTICULAR FOR USE IN AC TELEGRAPHY SYSTEMS
AT311432B (en) Circuit arrangement for generating an acoustic call signal for terminals in telecommunication systems, in particular telephone systems, by means of an oscillating circuit
AT315923B (en) Circuit arrangement for subscriber stations with keypad for generating tone-frequency characters in telecommunication systems, in particular telephone systems
DD113422A1 (en) Circuit arrangement for generating 3-phase alternating current, in particular for supply networks in rail vehicles
SE7511835L (en) FRANK CONNECTION DEVICE IN PARTICULAR FOR ELECTRICAL CONDENSORS
IT1033599B (en) EQUIPMENT FOR AUTOMATICALLY SAILING NETWORKS
LU65061A1 (en) CIRCUIT ARRANGEMENT FOR THE PROTECTION OF SWITCHING ORGANS IN TELECOMMUNICATIONS, PARTICULARLY TELEPHONE SYSTEMS
CH443411A (en) Circuit arrangement for monitoring telecommunication lines, in particular telephone lines
IT1052865B (en) PULSE TONE CONVERTERS FOR TELEPHONE SYSTEMS

Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee