GB615448A - - Google Patents

Info

Publication number
GB615448A
GB615448A GB615448DA GB615448A GB 615448 A GB615448 A GB 615448A GB 615448D A GB615448D A GB 615448DA GB 615448 A GB615448 A GB 615448A
Authority
GB
United Kingdom
Prior art keywords
exchange
selector
digit
relay
calls
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.)
Active
Application number
Other languages
English (en)
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.)
Publication of GB615448A publication Critical patent/GB615448A/en
Active 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
    • H04M1/006—Call diverting means

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Telephonic Communication Services (AREA)
  • Exchange Systems With Centralized Control (AREA)
GB615448D 1945-12-15 Active GB615448A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB45048A GB615503A (en) 1945-12-15 1945-12-15 Improvements in or relating to telephone systems

Publications (1)

Publication Number Publication Date
GB615448A true GB615448A (enrdf_load_stackoverflow)

Family

ID=9704558

Family Applications (2)

Application Number Title Priority Date Filing Date
GB615448D Active GB615448A (enrdf_load_stackoverflow) 1945-12-15
GB45048A Expired GB615503A (en) 1945-12-15 1945-12-15 Improvements in or relating to telephone systems

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB45048A Expired GB615503A (en) 1945-12-15 1945-12-15 Improvements in or relating to telephone systems

Country Status (1)

Country Link
GB (2) GB615503A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3965306A (en) * 1974-11-11 1976-06-22 San/Bar Corporation Telephone line transfer circuit

Also Published As

Publication number Publication date
GB615503A (en) 1949-01-06

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