JPS6464493A - Digital key telephone system - Google Patents

Digital key telephone system

Info

Publication number
JPS6464493A
JPS6464493A JP22127587A JP22127587A JPS6464493A JP S6464493 A JPS6464493 A JP S6464493A JP 22127587 A JP22127587 A JP 22127587A JP 22127587 A JP22127587 A JP 22127587A JP S6464493 A JPS6464493 A JP S6464493A
Authority
JP
Japan
Prior art keywords
designation
telephone system
key telephone
digital key
equipment
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
JP22127587A
Other languages
Japanese (ja)
Other versions
JP2654025B2 (en
Inventor
Hiroshi Mano
Junichi Shiomi
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP62221275A priority Critical patent/JP2654025B2/en
Priority to US07/230,799 priority patent/US4887264A/en
Priority to CA000574298A priority patent/CA1296413C/en
Priority to KR1019880011374A priority patent/KR910005471B1/en
Publication of JPS6464493A publication Critical patent/JPS6464493A/en
Application granted granted Critical
Publication of JP2654025B2 publication Critical patent/JP2654025B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To reduce the number of connecting wirings at the time of connecting many slave main equipments and to simultaneously call the plural slave main equipments by one transmission operation from a main equipment, by multipoint connecting the plural slave main equipments by one master main equipment of a digital key telephone system. CONSTITUTION:The intersystem connecting interface unit 24 of the plural slave main equipments 2a, 2b-2g is connected to the intersystem connecting interface 14 of the one master main equipment 1 of the digital key telephone system. The unit 14 of the main equipment 1 of this system designates the addresses of the slave main equipments 2a, 2b-2g to transmit control data and voice data. The designation of the address attains the simultaneous designation of all the slave main equipment 2a, 2b-2g, the simultaneous designation of an arbitrary combination and an individual designation. Only at the time of simultaneously designation or individually designating its own equipment, the unit 24 receives the control and the voice data.
JP62221275A 1987-09-04 1987-09-04 Digital key telephone equipment Expired - Fee Related JP2654025B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP62221275A JP2654025B2 (en) 1987-09-04 1987-09-04 Digital key telephone equipment
US07/230,799 US4887264A (en) 1987-09-04 1988-08-10 Digital key telephone system
CA000574298A CA1296413C (en) 1987-09-04 1988-08-10 Digital key telephone system
KR1019880011374A KR910005471B1 (en) 1987-09-04 1988-09-03 Digital key telephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62221275A JP2654025B2 (en) 1987-09-04 1987-09-04 Digital key telephone equipment

Publications (2)

Publication Number Publication Date
JPS6464493A true JPS6464493A (en) 1989-03-10
JP2654025B2 JP2654025B2 (en) 1997-09-17

Family

ID=16764224

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62221275A Expired - Fee Related JP2654025B2 (en) 1987-09-04 1987-09-04 Digital key telephone equipment

Country Status (1)

Country Link
JP (1) JP2654025B2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5687970A (en) * 1979-12-18 1981-07-17 Nippon Telegr & Teleph Corp <Ntt> Digital button telephone system
JPS62122354A (en) * 1985-11-21 1987-06-03 Iwatsu Electric Co Ltd Method and equipment for data transmission
JPS62135038A (en) * 1985-12-06 1987-06-18 Nec Corp Data communications system for slave processor
JPS62221276A (en) * 1986-03-24 1987-09-29 Seiko Instr & Electronics Ltd Thermosensitive recorder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5687970A (en) * 1979-12-18 1981-07-17 Nippon Telegr & Teleph Corp <Ntt> Digital button telephone system
JPS62122354A (en) * 1985-11-21 1987-06-03 Iwatsu Electric Co Ltd Method and equipment for data transmission
JPS62135038A (en) * 1985-12-06 1987-06-18 Nec Corp Data communications system for slave processor
JPS62221276A (en) * 1986-03-24 1987-09-29 Seiko Instr & Electronics Ltd Thermosensitive recorder

Also Published As

Publication number Publication date
JP2654025B2 (en) 1997-09-17

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees