ATA6877A - CIRCUIT ARRANGEMENT FOR CALL SIGNALING - Google Patents

CIRCUIT ARRANGEMENT FOR CALL SIGNALING

Info

Publication number
ATA6877A
ATA6877A AT6877A AT6877A ATA6877A AT A6877 A ATA6877 A AT A6877A AT 6877 A AT6877 A AT 6877A AT 6877 A AT6877 A AT 6877A AT A6877 A ATA6877 A AT A6877A
Authority
AT
Austria
Prior art keywords
circuit arrangement
call signaling
signaling
call
arrangement
Prior art date
Application number
AT6877A
Other languages
German (de)
Other versions
AT354528B (en
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
Priority to AT502477A priority Critical patent/AT346489B/en
Priority to AT502577A priority patent/AT346490B/en
Application granted granted Critical
Publication of AT354528B publication Critical patent/AT354528B/en
Publication of ATA6877A publication Critical patent/ATA6877A/en

Links

Classifications

    • 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
    • H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Telephonic Communication Services (AREA)
AT6877A 1974-09-06 1977-01-10 CIRCUIT ARRANGEMENT FOR CALL SIGNALING AT354528B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT502477A AT346489B (en) 1974-09-06 1977-07-13 PROCESS FOR THE PRODUCTION OF NEW N-ACYLAMINO-ALFA-ARYLACETAMIDOCEPHALOSPORIN DERIVATIVES AND THEIR SALTS
AT502577A AT346490B (en) 1974-09-06 1977-07-13 PROCESS FOR MANUFACTURING NEW CEPHALOSPORIN DERIVATIVES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1556976A CH604454A5 (en) 1976-12-10 1976-12-10 Telephone call signal circuit

Publications (2)

Publication Number Publication Date
AT354528B AT354528B (en) 1979-01-10
ATA6877A true ATA6877A (en) 1979-06-15

Family

ID=4410194

Family Applications (1)

Application Number Title Priority Date Filing Date
AT6877A AT354528B (en) 1974-09-06 1977-01-10 CIRCUIT ARRANGEMENT FOR CALL SIGNALING

Country Status (3)

Country Link
AT (1) AT354528B (en)
CH (1) CH604454A5 (en)
IL (1) IL53543A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103387A (en) * 1991-01-31 1992-04-07 Northern Telecom Limited High voltage converter
DE69229268T2 (en) * 1992-04-03 1999-09-23 Northern Telecom Ltd., Montreal INTERFACE SWITCHING WITH VOLTAGE SWITCHING FOR A TELEPHONE LINE

Also Published As

Publication number Publication date
IL53543A (en) 1980-05-30
CH604454A5 (en) 1978-09-15
AT354528B (en) 1979-01-10
IL53543A0 (en) 1978-03-10

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Legal Events

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