JPS5784699A - Main trunk incoming call display system for button telephone set - Google Patents

Main trunk incoming call display system for button telephone set

Info

Publication number
JPS5784699A
JPS5784699A JP16051980A JP16051980A JPS5784699A JP S5784699 A JPS5784699 A JP S5784699A JP 16051980 A JP16051980 A JP 16051980A JP 16051980 A JP16051980 A JP 16051980A JP S5784699 A JPS5784699 A JP S5784699A
Authority
JP
Japan
Prior art keywords
incoming
telephone set
main trunk
audio
incoming call
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.)
Pending
Application number
JP16051980A
Other languages
Japanese (ja)
Inventor
Akira Okamoto
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP16051980A priority Critical patent/JPS5784699A/en
Publication of JPS5784699A publication Critical patent/JPS5784699A/en
Pending 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
    • H04M9/003—Transmission of control signals from or to the key telephone set; signalling equipment at key telephone set, e.g. keyboard or display equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:To achieve a button telephone set which can display the main trunk incoming, by making the incoming call guiding broadcast including the incoming line number through artificial voice made with an audio synthesis circuit. CONSTITUTION:When a main trunk incoming signal is transmitted from a station to a main trunk connection terminal 2, the incoming is detected with a main wire trunk 3, and a microprocessor 5 turns on a channel switch matrix 4 so that an audio synthesis circuit 11 to be connected with an audio bus 14 of a button telephone set 12 via an input/output port 6. On the other hand, since the incoming line number data and the drive signal are transmitted from the microprocessor 5 to the circuit 11 via the input/output port 6, the audio synthesis circuit 11 forms an audio signal such as ''Telephone call on Nol. line''. This audio signal is converted into voice from a speaker in the telephone set 12 to announce the incoming call.
JP16051980A 1980-11-14 1980-11-14 Main trunk incoming call display system for button telephone set Pending JPS5784699A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16051980A JPS5784699A (en) 1980-11-14 1980-11-14 Main trunk incoming call display system for button telephone set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16051980A JPS5784699A (en) 1980-11-14 1980-11-14 Main trunk incoming call display system for button telephone set

Publications (1)

Publication Number Publication Date
JPS5784699A true JPS5784699A (en) 1982-05-27

Family

ID=15716705

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16051980A Pending JPS5784699A (en) 1980-11-14 1980-11-14 Main trunk incoming call display system for button telephone set

Country Status (1)

Country Link
JP (1) JPS5784699A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59110262A (en) * 1982-12-15 1984-06-26 Fujitsu Ltd Incoming and calling system
JPS6166454A (en) * 1984-09-10 1986-04-05 Nec Eng Ltd Trunk line number checking system
JPH06121045A (en) * 1992-10-05 1994-04-28 Hitachi Telecom Technol Ltd Telephone switching system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59110262A (en) * 1982-12-15 1984-06-26 Fujitsu Ltd Incoming and calling system
JPS6166454A (en) * 1984-09-10 1986-04-05 Nec Eng Ltd Trunk line number checking system
JPH06121045A (en) * 1992-10-05 1994-04-28 Hitachi Telecom Technol Ltd Telephone switching system

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