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GB1138925A - Improvements in or relating to automatic telecommunication exchanges - Google Patents

Improvements in or relating to automatic telecommunication exchanges

Info

Publication number
GB1138925A
GB1138925A GB2778767A GB2778767A GB1138925A GB 1138925 A GB1138925 A GB 1138925A GB 2778767 A GB2778767 A GB 2778767A GB 2778767 A GB2778767 A GB 2778767A GB 1138925 A GB1138925 A GB 1138925A
Authority
GB
United Kingdom
Prior art keywords
transferee
identity
transferor
exchange
coded
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
GB2778767A
Inventor
Colin Roy Brown
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 GB2778767A priority Critical patent/GB1138925A/en
Priority to DE19681762415 priority patent/DE1762415B2/en
Priority to BE716662D priority patent/BE716662A/xx
Publication of GB1138925A publication Critical patent/GB1138925A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Telephonic Communication Services (AREA)
  • Meter Arrangements (AREA)

Abstract

1,138,925. Automatic exchanges. STANDARD TELEPHONES & CABLES Ltd. 16 June, 1967, No. 27787/67. Heading H4K. To divert calls at the exchange intended for a certain subscriber (the transferor) to a predetermined other subscriber (the transferee), the transferor dials into the exchange from his own line a transfer request code plus the coded identity of the transferee. From the identity of the calling transferor and the coded identity of the transferee, the transferee's full identity is obtained via a decoder addressing a common address store. The state of the transferee's line is then ascertained as to whether it can accept transferred calls. If not the transferor receives number unobtainable tone, otherwise the coded identity of the transferee is put into a store position permanently allocated to the transferor who then receives interrupted dial tone as an indication that the transfer facility has been set up and receives it each time he makes a call until the transfer facility is cancelled. For all incoming calls the last mentioned store is interrogated to ascertain whether the wanted line is in transfer. If so, the coded identity of the transferee is extracted and with the full identity of the transferor enables the full identity of the transferee to be obtained from the common address store to whom the call is then routed. If the transferee is in another exchange his identity may be sent back to the originating exchange or the call extended from the exchange already reached. To cancel the facility the transferor dials a cancel code.
GB2778767A 1967-06-16 1967-06-16 Improvements in or relating to automatic telecommunication exchanges Expired GB1138925A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2778767A GB1138925A (en) 1967-06-16 1967-06-16 Improvements in or relating to automatic telecommunication exchanges
DE19681762415 DE1762415B2 (en) 1967-06-16 1968-06-12 CIRCUIT ARRANGEMENT FOR INDEPENDENT / PARTIAL SWITCHING OF OWN CONNECTION TO ANOTHER CONNECTION WITH OWN PHONE NUMBER
BE716662D BE716662A (en) 1967-06-16 1968-06-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2778767A GB1138925A (en) 1967-06-16 1967-06-16 Improvements in or relating to automatic telecommunication exchanges

Publications (1)

Publication Number Publication Date
GB1138925A true GB1138925A (en) 1969-01-01

Family

ID=10265312

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2778767A Expired GB1138925A (en) 1967-06-16 1967-06-16 Improvements in or relating to automatic telecommunication exchanges

Country Status (3)

Country Link
BE (1) BE716662A (en)
DE (1) DE1762415B2 (en)
GB (1) GB1138925A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4154988A (en) * 1977-10-21 1979-05-15 Wescom Switching, Inc. Method and means for accessing program memory of a common control telecommunications switching system
WO1982002132A1 (en) * 1980-12-10 1982-06-24 Kurt Paulsson A device for the referral/transfer of calls in telephone exchanges

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4154988A (en) * 1977-10-21 1979-05-15 Wescom Switching, Inc. Method and means for accessing program memory of a common control telecommunications switching system
WO1982002132A1 (en) * 1980-12-10 1982-06-24 Kurt Paulsson A device for the referral/transfer of calls in telephone exchanges

Also Published As

Publication number Publication date
DE1762415A1 (en) 1970-04-30
DE1762415B2 (en) 1971-06-03
BE716662A (en) 1968-12-17

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