DK139290C - CONNECTION TO BLOCK ACCESSIBLE UNLOCK OF SUBSCRIBERS CONNECTED TO A PABC SYSTEM - Google Patents

CONNECTION TO BLOCK ACCESSIBLE UNLOCK OF SUBSCRIBERS CONNECTED TO A PABC SYSTEM

Info

Publication number
DK139290C
DK139290C DK427172A DK427172A DK139290C DK 139290 C DK139290 C DK 139290C DK 427172 A DK427172 A DK 427172A DK 427172 A DK427172 A DK 427172A DK 139290 C DK139290 C DK 139290C
Authority
DK
Denmark
Prior art keywords
pabc
unlock
connection
subscribers connected
block accessible
Prior art date
Application number
DK427172A
Other languages
Danish (da)
Other versions
DK139290B (en
Inventor
H Skawski
W Werr
H Valentin
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 DK139290B publication Critical patent/DK139290B/en
Application granted granted Critical
Publication of DK139290C publication Critical patent/DK139290C/en

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
    • H04M3/58—Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Exchange Systems With Centralized Control (AREA)
DK427172A 1971-08-30 1972-08-29 CONNECTION TO BLOCK ACCESSIBLE UNLOCK OF SUBSCRIBERS CONNECTED TO A PABC SYSTEM DK139290C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712143376 DE2143376C3 (en) 1971-08-30 1971-08-30 Circuit arrangement for a telephone system, in particular a telephone branch exchange, with an auxiliary connection set that can be assigned by means of a special identifier

Publications (2)

Publication Number Publication Date
DK139290B DK139290B (en) 1979-01-22
DK139290C true DK139290C (en) 1979-06-18

Family

ID=5818178

Family Applications (1)

Application Number Title Priority Date Filing Date
DK427172A DK139290C (en) 1971-08-30 1972-08-29 CONNECTION TO BLOCK ACCESSIBLE UNLOCK OF SUBSCRIBERS CONNECTED TO A PABC SYSTEM

Country Status (3)

Country Link
DE (1) DE2143376C3 (en)
DK (1) DK139290C (en)
IT (1) IT964261B (en)

Also Published As

Publication number Publication date
DK139290B (en) 1979-01-22
DE2143376A1 (en) 1973-03-15
DE2143376B2 (en) 1974-01-31
DE2143376C3 (en) 1974-08-22
IT964261B (en) 1974-01-21

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