JPS54156405A - Control system for push button telephone - Google Patents

Control system for push button telephone

Info

Publication number
JPS54156405A
JPS54156405A JP6506278A JP6506278A JPS54156405A JP S54156405 A JPS54156405 A JP S54156405A JP 6506278 A JP6506278 A JP 6506278A JP 6506278 A JP6506278 A JP 6506278A JP S54156405 A JPS54156405 A JP S54156405A
Authority
JP
Japan
Prior art keywords
unit
telephone
button telephone
telephone set
line
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.)
Granted
Application number
JP6506278A
Other languages
Japanese (ja)
Other versions
JPS5856311B2 (en
Inventor
Teruyuki Kubo
Masaaki Terai
Kazuyuki Yamamoto
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP6506278A priority Critical patent/JPS5856311B2/en
Publication of JPS54156405A publication Critical patent/JPS54156405A/en
Publication of JPS5856311B2 publication Critical patent/JPS5856311B2/en
Expired legal-status Critical Current

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

Abstract

PURPOSE:To enable to function the entire unit as one button telephone unit, with a plurality of button telephone main units connected in parallel with one bus line connecting memories and a simple conrol circuit. CONSTITUTION:The button telephone main units 1-1...1-n are connected in parallel with the common memory 11 and the control circuit 12 via the bus circuit 4, and to the unit 1-i, the button telephone sets 2-1-i...2-l-i and the office lines 3-1-i...3-m-i are connected. Further, for example, when the telephone set 2-1-1 located in 1-1 calls out the telephone set 2-1-n or the office line 3-1-n located in the unit 1-n, the unit 1-1 connects the telephone set 2-1-1 to the bus line 4, the information designating the opposing telephone set or the office line is written in the memory 11, and the unit 1-n of the opposing unit scanns the memory 11 and connects the telephone set 2-1-n or the office line 3-1-n to the line 4 similarly. Thus, the main unit is entirely functioned as one button telephone unit.
JP6506278A 1978-05-31 1978-05-31 button phone control method Expired JPS5856311B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6506278A JPS5856311B2 (en) 1978-05-31 1978-05-31 button phone control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6506278A JPS5856311B2 (en) 1978-05-31 1978-05-31 button phone control method

Publications (2)

Publication Number Publication Date
JPS54156405A true JPS54156405A (en) 1979-12-10
JPS5856311B2 JPS5856311B2 (en) 1983-12-14

Family

ID=13276084

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6506278A Expired JPS5856311B2 (en) 1978-05-31 1978-05-31 button phone control method

Country Status (1)

Country Link
JP (1) JPS5856311B2 (en)

Also Published As

Publication number Publication date
JPS5856311B2 (en) 1983-12-14

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