AT282694B - Circuit arrangement for telephone private branch exchanges - Google Patents

Circuit arrangement for telephone private branch exchanges

Info

Publication number
AT282694B
AT282694B AT95568A AT95568A AT282694B AT 282694 B AT282694 B AT 282694B AT 95568 A AT95568 A AT 95568A AT 95568 A AT95568 A AT 95568A AT 282694 B AT282694 B AT 282694B
Authority
AT
Austria
Prior art keywords
circuit arrangement
private branch
branch exchanges
telephone private
telephone
Prior art date
Application number
AT95568A
Other languages
German (de)
Original Assignee
Telefonbau & Normalzeit Gmbh
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 Telefonbau & Normalzeit Gmbh filed Critical Telefonbau & Normalzeit Gmbh
Application granted granted Critical
Publication of AT282694B publication Critical patent/AT282694B/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q3/00Selecting arrangements
    • H04Q3/58Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625Arrangements 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)
AT95568A 1967-03-04 1968-01-31 Circuit arrangement for telephone private branch exchanges AT282694B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET0033349 1967-03-04

Publications (1)

Publication Number Publication Date
AT282694B true AT282694B (en) 1970-07-10

Family

ID=7557698

Family Applications (2)

Application Number Title Priority Date Filing Date
AT10469A AT287075B (en) 1967-03-04 1968-01-31 CIRCUIT ARRANGEMENT FOR TELEPHONE EXTENSION SYSTEMS WITH SIGNAL LAMPS
AT95568A AT282694B (en) 1967-03-04 1968-01-31 Circuit arrangement for telephone private branch exchanges

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AT10469A AT287075B (en) 1967-03-04 1968-01-31 CIRCUIT ARRANGEMENT FOR TELEPHONE EXTENSION SYSTEMS WITH SIGNAL LAMPS

Country Status (4)

Country Link
AT (2) AT287075B (en)
DE (1) DE1512094B2 (en)
FR (1) FR1559905A (en)
NL (1) NL6802489A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991282A (en) * 1974-12-27 1976-11-09 Feil Thomas E Multi station telephone switching system

Also Published As

Publication number Publication date
DE1512094A1 (en) 1969-03-13
NL6802489A (en) 1968-09-05
FR1559905A (en) 1969-03-14
DE1512094B2 (en) 1970-02-26
AT287075B (en) 1971-01-11

Similar Documents

Publication Publication Date Title
CH496383A (en) Automatic telecommunication switching system
BR6803645D0 (en) ELECTRIC CIRCUITS
FR1535496A (en) Improvements to automatic telephone exchanges
AT282694B (en) Circuit arrangement for telephone private branch exchanges
AT282703B (en) Switching arrangement for telecommunication systems
CH477789A (en) Coupling arrangement for telecommunications switching systems
AT302444B (en) Branch terminal
CH460874A (en) Conference facility for private branch exchanges
AT278107B (en) Circuit arrangement for a call forwarding device in telecommunications systems
DE1665982B2 (en) LOET-FREE CONNECTION TERMINAL
AT268387B (en) Telephone exchange
BR6804172D0 (en) TELECOMMUNICATION EQUIPMENT
CH402963A (en) Circuit arrangement for telephone private branch exchanges
FR1389919A (en) Improvements to private telephone exchanges
AT285687B (en) Local telephone system
AT278136B (en) Telecommunication switching group
AT284915B (en) Circuit arrangement for telephone branch exchanges with exchanges connected to one another via cross-connecting lines
FI43608C (en) Analyzer for automatic telephone exchanges
FI43748C (en) Analyzer for automatic telephone exchanges
AT293493B (en) Hook switch for telephones
CH492373A (en) Automatic telephone exchange
CA773186A (en) Busy verification circuit for private branch exchanges
AT252327B (en) Subscriber circuit for the connection of telephone private branch exchanges
AT287070B (en) Circuit arrangement for a dial recording device for telecommunications, in particular telephone private branch exchanges
CH480767A (en) Automatic telecommunications switching network

Legal Events

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