GB540250A - Improvements in or relating to telecommunication exchange systems - Google Patents

Improvements in or relating to telecommunication exchange systems

Info

Publication number
GB540250A
GB540250A GB6390/40A GB639040A GB540250A GB 540250 A GB540250 A GB 540250A GB 6390/40 A GB6390/40 A GB 6390/40A GB 639040 A GB639040 A GB 639040A GB 540250 A GB540250 A GB 540250A
Authority
GB
United Kingdom
Prior art keywords
those
digit
transmitting
exchange systems
relating
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
GB6390/40A
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
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB6390/40A priority Critical patent/GB540250A/en
Priority to GB6391/40A priority patent/GB541074A/en
Publication of GB540250A publication Critical patent/GB540250A/en
Priority to FR940995D priority patent/FR940995A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
    • H04M1/65—Recording arrangements for recording a message from the calling party
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Prepayment Telephone Systems (AREA)
  • Meter Arrangements (AREA)

Abstract

540,250. Automatic exchange systems. STANDARD TELEPHONES & CABLES. Ltd.. and WRIGHT, E. P. G. April 9, 1940, No. 6390. Drawings to Specification. [Class 40 (iv)] Means are provided in a tandem or terminal exchange for distinguishing between several kinds of call, e.g. coin box calls, those to be ticketed, those to be extended automatically without ticketing and those to be routed to an operator, the outgoing circuits at a previous point in the connection having means for sending over a simplex circuit after each digit a signal which may be characterized by duration or number of impulses determined by one or more slow relays or the multipling. of contacts of an automatic stepping switch started up on termination of a digit. In cases where simple signalling is used for transmitting the identification of a calling party the same circuit may be used for transmitting the present signals.
GB6390/40A 1940-04-09 1940-04-09 Improvements in or relating to telecommunication exchange systems Expired GB540250A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB6390/40A GB540250A (en) 1940-04-09 1940-04-09 Improvements in or relating to telecommunication exchange systems
GB6391/40A GB541074A (en) 1940-04-09 1940-04-09 Improvements in or relating to tele-communication exchange systems
FR940995D FR940995A (en) 1940-04-09 1947-01-08 Central office telecommunication systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB268344X 1940-04-09
GB6390/40A GB540250A (en) 1940-04-09 1940-04-09 Improvements in or relating to telecommunication exchange systems

Publications (1)

Publication Number Publication Date
GB540250A true GB540250A (en) 1941-10-10

Family

ID=26240656

Family Applications (2)

Application Number Title Priority Date Filing Date
GB6390/40A Expired GB540250A (en) 1940-04-09 1940-04-09 Improvements in or relating to telecommunication exchange systems
GB6391/40A Expired GB541074A (en) 1940-04-09 1940-04-09 Improvements in or relating to tele-communication exchange systems

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB6391/40A Expired GB541074A (en) 1940-04-09 1940-04-09 Improvements in or relating to tele-communication exchange systems

Country Status (1)

Country Link
GB (2) GB540250A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2908758A (en) * 1952-09-11 1959-10-13 Gen Telephone Lab Inc Toll ticketing telephone systems

Also Published As

Publication number Publication date
GB541074A (en) 1941-11-12

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