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GB529718A - Improvements in or relating to telecommunication exchange systems - Google Patents

Improvements in or relating to telecommunication exchange systems

Info

Publication number
GB529718A
GB529718A GB1213239A GB1213239A GB529718A GB 529718 A GB529718 A GB 529718A GB 1213239 A GB1213239 A GB 1213239A GB 1213239 A GB1213239 A GB 1213239A GB 529718 A GB529718 A GB 529718A
Authority
GB
United Kingdom
Prior art keywords
over
circuit
digit
pulls
relay
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB1213239A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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
Priority to FR959748D priority Critical patent/FR959748A/fr
Priority to BE478253D priority patent/BE478253A/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB1213239A priority patent/GB529718A/en
Publication of GB529718A publication Critical patent/GB529718A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/08—Metering calls to called party, i.e. B-party charged for the communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
GB1213239A 1939-04-22 1939-04-22 Improvements in or relating to telecommunication exchange systems Expired GB529718A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR959748D FR959748A (de) 1939-04-22
BE478253D BE478253A (de) 1939-04-22
GB1213239A GB529718A (en) 1939-04-22 1939-04-22 Improvements in or relating to telecommunication exchange systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1213239A GB529718A (en) 1939-04-22 1939-04-22 Improvements in or relating to telecommunication exchange systems

Publications (1)

Publication Number Publication Date
GB529718A true GB529718A (en) 1940-11-27

Family

ID=9998932

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1213239A Expired GB529718A (en) 1939-04-22 1939-04-22 Improvements in or relating to telecommunication exchange systems

Country Status (3)

Country Link
BE (1) BE478253A (de)
FR (1) FR959748A (de)
GB (1) GB529718A (de)

Also Published As

Publication number Publication date
FR959748A (de) 1950-04-04
BE478253A (de)

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