AU4354889A - Digital telephone set having an emergency switching function and communication system having the same - Google Patents

Digital telephone set having an emergency switching function and communication system having the same

Info

Publication number
AU4354889A
AU4354889A AU43548/89A AU4354889A AU4354889A AU 4354889 A AU4354889 A AU 4354889A AU 43548/89 A AU43548/89 A AU 43548/89A AU 4354889 A AU4354889 A AU 4354889A AU 4354889 A AU4354889 A AU 4354889A
Authority
AU
Australia
Prior art keywords
communication system
same
telephone set
switching function
digital telephone
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
AU43548/89A
Other versions
AU618852B2 (en
Inventor
Michihiro Hamada
Yoshiaki Inoue
Yutaka Suzuki
Shigehiko Yazawa
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of AU4354889A publication Critical patent/AU4354889A/en
Application granted granted Critical
Publication of AU618852B2 publication Critical patent/AU618852B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

AU43548/89A 1988-10-19 1989-10-18 Digital telephone set having an emergency switching function and communication system having the same Ceased AU618852B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP63-263634 1988-10-19
JP26363488 1988-10-19
JP1-38773 1989-02-17
JP3877389 1989-02-17

Publications (2)

Publication Number Publication Date
AU4354889A true AU4354889A (en) 1990-04-26
AU618852B2 AU618852B2 (en) 1992-01-09

Family

ID=26378062

Family Applications (1)

Application Number Title Priority Date Filing Date
AU43548/89A Ceased AU618852B2 (en) 1988-10-19 1989-10-18 Digital telephone set having an emergency switching function and communication system having the same

Country Status (1)

Country Link
AU (1) AU618852B2 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3812666A1 (en) * 1988-04-15 1989-11-02 Siemens Ag CIRCUIT ARRANGEMENT FOR SWITCHING A SWITCHING DEVICE FROM NORMAL SWITCHING OPERATION TO EMERGENCY OPERATION AND REVERSE

Also Published As

Publication number Publication date
AU618852B2 (en) 1992-01-09

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired