BE796581A - LINE CIRCUIT FOR A KEYPAD TELEPHONE SYSTEM - Google Patents

LINE CIRCUIT FOR A KEYPAD TELEPHONE SYSTEM

Info

Publication number
BE796581A
BE796581A BE128636A BE128636A BE796581A BE 796581 A BE796581 A BE 796581A BE 128636 A BE128636 A BE 128636A BE 128636 A BE128636 A BE 128636A BE 796581 A BE796581 A BE 796581A
Authority
BE
Belgium
Prior art keywords
telephone system
line circuit
keypad telephone
keypad
circuit
Prior art date
Application number
BE128636A
Other languages
French (fr)
Original Assignee
Northern Electric Co
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 Northern Electric Co filed Critical Northern Electric Co
Priority to BE128636A priority Critical patent/BE796581A/en
Publication of BE796581A publication Critical patent/BE796581A/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)
BE128636A 1973-03-09 1973-03-09 LINE CIRCUIT FOR A KEYPAD TELEPHONE SYSTEM BE796581A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE128636A BE796581A (en) 1973-03-09 1973-03-09 LINE CIRCUIT FOR A KEYPAD TELEPHONE SYSTEM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE128636A BE796581A (en) 1973-03-09 1973-03-09 LINE CIRCUIT FOR A KEYPAD TELEPHONE SYSTEM

Publications (1)

Publication Number Publication Date
BE796581A true BE796581A (en) 1973-07-02

Family

ID=3841773

Family Applications (1)

Application Number Title Priority Date Filing Date
BE128636A BE796581A (en) 1973-03-09 1973-03-09 LINE CIRCUIT FOR A KEYPAD TELEPHONE SYSTEM

Country Status (1)

Country Link
BE (1) BE796581A (en)

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