IT8024996A0 - LINE CIRCUIT FOR A KEY TELEPHONE CONTROLLED BY A MICROCOMPUTATION. - Google Patents

LINE CIRCUIT FOR A KEY TELEPHONE CONTROLLED BY A MICROCOMPUTATION.

Info

Publication number
IT8024996A0
IT8024996A0 IT8024996A IT2499680A IT8024996A0 IT 8024996 A0 IT8024996 A0 IT 8024996A0 IT 8024996 A IT8024996 A IT 8024996A IT 2499680 A IT2499680 A IT 2499680A IT 8024996 A0 IT8024996 A0 IT 8024996A0
Authority
IT
Italy
Prior art keywords
microcomputation
line circuit
key telephone
telephone controlled
controlled
Prior art date
Application number
IT8024996A
Other languages
Italian (it)
Other versions
IT1132808B (en
Inventor
E Thomas White
Paul U Lind
Original Assignee
Gte Automatic Electric Lab 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 Gte Automatic Electric Lab Inc filed Critical Gte Automatic Electric Lab Inc
Publication of IT8024996A0 publication Critical patent/IT8024996A0/en
Application granted granted Critical
Publication of IT1132808B publication Critical patent/IT1132808B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line
    • H04M9/006—Exchange line circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
IT24996/80A 1979-10-03 1980-09-29 Microcircuit giving simple control of seVeral pushbutton phones IT1132808B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8158279A 1979-10-03 1979-10-03

Publications (2)

Publication Number Publication Date
IT8024996A0 true IT8024996A0 (en) 1980-09-29
IT1132808B IT1132808B (en) 1986-07-09

Family

ID=22165069

Family Applications (1)

Application Number Title Priority Date Filing Date
IT24996/80A IT1132808B (en) 1979-10-03 1980-09-29 Microcircuit giving simple control of seVeral pushbutton phones

Country Status (3)

Country Link
BE (1) BE884368A (en)
CA (1) CA1145496A (en)
IT (1) IT1132808B (en)

Also Published As

Publication number Publication date
BE884368A (en) 1980-11-17
CA1145496A (en) 1983-04-26
IT1132808B (en) 1986-07-09

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