GB1552813A - Telephone exchanges - Google Patents

Telephone exchanges

Info

Publication number
GB1552813A
GB1552813A GB485478A GB485478A GB1552813A GB 1552813 A GB1552813 A GB 1552813A GB 485478 A GB485478 A GB 485478A GB 485478 A GB485478 A GB 485478A GB 1552813 A GB1552813 A GB 1552813A
Authority
GB
United Kingdom
Prior art keywords
telephone exchanges
exchanges
telephone
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
GB485478A
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 GB485478A priority Critical patent/GB1552813A/en
Publication of GB1552813A publication Critical patent/GB1552813A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
    • H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme
    • H04Q3/54508—Configuration, initialisation
    • H04Q3/54533—Configuration data, translation, passwords, databases

Landscapes

  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
GB485478A 1976-09-28 1976-09-28 Telephone exchanges Expired GB1552813A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB485478A GB1552813A (en) 1976-09-28 1976-09-28 Telephone exchanges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB485478A GB1552813A (en) 1976-09-28 1976-09-28 Telephone exchanges

Publications (1)

Publication Number Publication Date
GB1552813A true GB1552813A (en) 1979-09-19

Family

ID=9785060

Family Applications (1)

Application Number Title Priority Date Filing Date
GB485478A Expired GB1552813A (en) 1976-09-28 1976-09-28 Telephone exchanges

Country Status (1)

Country Link
GB (1) GB1552813A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee