GB654311A - Improvements in automatic telephone switching systems - Google Patents

Improvements in automatic telephone switching systems

Info

Publication number
GB654311A
GB654311A GB21395/48A GB2139548A GB654311A GB 654311 A GB654311 A GB 654311A GB 21395/48 A GB21395/48 A GB 21395/48A GB 2139548 A GB2139548 A GB 2139548A GB 654311 A GB654311 A GB 654311A
Authority
GB
United Kingdom
Prior art keywords
tubes
trunk
relay
digits
tube
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
GB21395/48A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB654311A publication Critical patent/GB654311A/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
    • 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
    • H04M15/04—Recording calls, or communications in printed, perforated or other permanent form

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Interface Circuits In Exchanges (AREA)
GB21395/48A 1947-08-22 1948-08-13 Improvements in automatic telephone switching systems Expired GB654311A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US770131A US2562717A (en) 1947-08-22 1947-08-22 Dialed number recovery circuit

Publications (1)

Publication Number Publication Date
GB654311A true GB654311A (en) 1951-06-13

Family

ID=25087575

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21395/48A Expired GB654311A (en) 1947-08-22 1948-08-13 Improvements in automatic telephone switching systems

Country Status (5)

Country Link
US (1) US2562717A (en, 2012)
BE (1) BE484481A (en, 2012)
FR (1) FR970277A (en, 2012)
GB (1) GB654311A (en, 2012)
NL (1) NL79795C (en, 2012)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2851531A (en) * 1952-03-12 1958-09-09 Gen Telephone Lab Inc Automatic telephone systems involving toll recording facilities
US2834834A (en) * 1952-09-20 1958-05-13 Int Standard Electric Corp Circuit arrangement for reducing the call losses in telephone systems with registers
NL83176C (en, 2012) * 1952-10-21
US2881258A (en) * 1953-01-09 1959-04-07 Gen Telephone Lab Inc Automatic telephone systems provided with toll recording facilities
US2886642A (en) * 1953-04-13 1959-05-12 Gen Dynamics Corp Automatic toll ticketing
US3035125A (en) * 1956-04-03 1962-05-15 Gen Dynamics Corp Digit sending means for telephone systems

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1387280A (en) * 1916-12-30 1921-08-09 Western Electric Co Telephone system
US1388887A (en) * 1919-11-01 1921-08-30 Western Electric Co Indicating system
US1650763A (en) * 1926-02-01 1927-11-29 Western Electric Co Telephone-exchange system
US1729857A (en) * 1926-07-19 1929-10-01 Automatic Electric Inc Multioffice telephone system
NL52905C (en, 2012) * 1937-08-21
US2300829A (en) * 1940-03-22 1942-11-03 Bell Telephone Labor Inc Calling line identification system
US2301015A (en) * 1940-03-22 1942-11-03 Bell Telephone Labor Inc Telephone system
NL74027C (en, 2012) * 1940-09-20
US2306729A (en) * 1940-10-17 1942-12-29 Bell Telephone Labor Inc Signaling system
GB609477A (en) * 1943-04-27 1948-10-01 Ericsson Telefon Ab L M An arrangement for fixing a quantity characteristic of a call for example the rate for a call in automatic telephone systems
US2351551A (en) * 1943-05-29 1944-06-13 Bell Telephone Labor Inc Telephone system
US2495769A (en) * 1947-03-03 1950-01-31 Clarence E Reeves Dial impulse recorder

Also Published As

Publication number Publication date
BE484481A (en, 2012)
NL79795C (en, 2012)
FR970277A (fr) 1951-01-02
US2562717A (en) 1951-07-31

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