ZA723830B - Apparatus for the reciprocal selective bidirectional connection of internal subscribers or of subscribers to a private telephone exchange - Google Patents

Apparatus for the reciprocal selective bidirectional connection of internal subscribers or of subscribers to a private telephone exchange

Info

Publication number
ZA723830B
ZA723830B ZA723830A ZA723830A ZA723830B ZA 723830 B ZA723830 B ZA 723830B ZA 723830 A ZA723830 A ZA 723830A ZA 723830 A ZA723830 A ZA 723830A ZA 723830 B ZA723830 B ZA 723830B
Authority
ZA
South Africa
Prior art keywords
subscribers
reciprocal
telephone exchange
bidirectional connection
private telephone
Prior art date
Application number
ZA723830A
Other languages
English (en)
Inventor
R Federico
M Oriente
Original Assignee
Sits Soc It Telecom Siemens
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 Sits Soc It Telecom Siemens filed Critical Sits Soc It Telecom Siemens
Publication of ZA723830B publication Critical patent/ZA723830B/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0008—Selecting arrangements using relay selectors in the switching stages

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Telephonic Communication Services (AREA)
ZA723830A 1971-11-08 1972-06-05 Apparatus for the reciprocal selective bidirectional connection of internal subscribers or of subscribers to a private telephone exchange ZA723830B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT30828/71A IT946045B (it) 1971-11-08 1971-11-08 Apparecchiatura per il collegamen to reciproco selettivo bidireziona le di utenti interni o di utenti esterni in una centrale telefonica

Publications (1)

Publication Number Publication Date
ZA723830B true ZA723830B (en) 1973-03-28

Family

ID=11232342

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA723830A ZA723830B (en) 1971-11-08 1972-06-05 Apparatus for the reciprocal selective bidirectional connection of internal subscribers or of subscribers to a private telephone exchange

Country Status (7)

Country Link
BE (1) BE781881A (xx)
DE (1) DE2248422C3 (xx)
ES (1) ES408344A1 (xx)
FR (1) FR2159854A5 (xx)
IT (1) IT946045B (xx)
NL (1) NL7214389A (xx)
ZA (1) ZA723830B (xx)

Also Published As

Publication number Publication date
DE2248422C3 (de) 1979-04-12
IT946045B (it) 1973-05-21
DE2248422B2 (de) 1978-08-10
ES408344A1 (es) 1975-11-01
DE2248422A1 (de) 1973-05-24
BE781881A (fr) 1972-07-31
FR2159854A5 (xx) 1973-06-22
NL7214389A (xx) 1973-05-10

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