JPS647753A - Telephone exchange system - Google Patents

Telephone exchange system

Info

Publication number
JPS647753A
JPS647753A JP13214587A JP13214587A JPS647753A JP S647753 A JPS647753 A JP S647753A JP 13214587 A JP13214587 A JP 13214587A JP 13214587 A JP13214587 A JP 13214587A JP S647753 A JPS647753 A JP S647753A
Authority
JP
Japan
Prior art keywords
subscriber
calling channel
cpu
absence
tone
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
JP13214587A
Other languages
English (en)
Inventor
Mitsuru Hayashi
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
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 filed Critical NEC Corp
Priority to JP13214587A priority Critical patent/JPS647753A/ja
Publication of JPS647753A publication Critical patent/JPS647753A/ja
Pending legal-status Critical Current

Links

JP13214587A 1987-05-27 1987-05-27 Telephone exchange system Pending JPS647753A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13214587A JPS647753A (en) 1987-05-27 1987-05-27 Telephone exchange system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13214587A JPS647753A (en) 1987-05-27 1987-05-27 Telephone exchange system

Publications (1)

Publication Number Publication Date
JPS647753A true JPS647753A (en) 1989-01-11

Family

ID=15074408

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13214587A Pending JPS647753A (en) 1987-05-27 1987-05-27 Telephone exchange system

Country Status (1)

Country Link
JP (1) JPS647753A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01222779A (ja) * 1988-02-29 1989-09-06 Nippon Shokuhin Kako Co Ltd 新規酵素およびゲンチオオリゴ糖高含有シラップの製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01222779A (ja) * 1988-02-29 1989-09-06 Nippon Shokuhin Kako Co Ltd 新規酵素およびゲンチオオリゴ糖高含有シラップの製造方法

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