IT1200061B - Procedimento per l'esercizio di impianto di commutazione per telecomunicazioni, in particolare telefonico - Google Patents

Procedimento per l'esercizio di impianto di commutazione per telecomunicazioni, in particolare telefonico

Info

Publication number
IT1200061B
IT1200061B IT48096/85A IT4809685A IT1200061B IT 1200061 B IT1200061 B IT 1200061B IT 48096/85 A IT48096/85 A IT 48096/85A IT 4809685 A IT4809685 A IT 4809685A IT 1200061 B IT1200061 B IT 1200061B
Authority
IT
Italy
Prior art keywords
lines
subscriber
monitoring system
line monitoring
telephone exchange
Prior art date
Application number
IT48096/85A
Other languages
English (en)
Other versions
IT8548096A0 (it
Inventor
Walter Mueller
Peter Vogel
Wolfgang Grischkat
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
Publication of IT8548096A0 publication Critical patent/IT8548096A0/it
Application granted granted Critical
Publication of IT1200061B publication Critical patent/IT1200061B/it

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
    • 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
    • H04M3/42314—Systems providing special services or facilities to subscribers in private branch exchanges
    • 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
    • H04M3/48—Arrangements for recalling a calling subscriber when the wanted subscriber ceases to be busy
    • 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
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/38—Graded-service arrangements, i.e. some subscribers prevented from establishing certain connections

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
IT48096/85A 1984-05-18 1985-05-17 Procedimento per l'esercizio di impianto di commutazione per telecomunicazioni, in particolare telefonico IT1200061B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3418457 1984-05-18

Publications (2)

Publication Number Publication Date
IT8548096A0 IT8548096A0 (it) 1985-05-17
IT1200061B true IT1200061B (it) 1989-01-05

Family

ID=6236187

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48096/85A IT1200061B (it) 1984-05-18 1985-05-17 Procedimento per l'esercizio di impianto di commutazione per telecomunicazioni, in particolare telefonico

Country Status (2)

Country Link
BE (1) BE902438A (it)
IT (1) IT1200061B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1258545A (en) * 1986-04-09 1989-08-15 Toshimitsu Shimizu Communication network capable of automatically informing a subscriber of occurrence of an idle channel
EP1006705A1 (en) * 1998-12-04 2000-06-07 Alcatel Private telecommunications switching system and method of establishing a connection

Also Published As

Publication number Publication date
BE902438A (fr) 1985-09-02
IT8548096A0 (it) 1985-05-17

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