JPS52119004A - Switching system having capability of switching connection during call ing - Google Patents

Switching system having capability of switching connection during call ing

Info

Publication number
JPS52119004A
JPS52119004A JP3427076A JP3427076A JPS52119004A JP S52119004 A JPS52119004 A JP S52119004A JP 3427076 A JP3427076 A JP 3427076A JP 3427076 A JP3427076 A JP 3427076A JP S52119004 A JPS52119004 A JP S52119004A
Authority
JP
Japan
Prior art keywords
switching
capability
connection during
during call
call ing
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
JP3427076A
Other languages
Japanese (ja)
Inventor
Toshimichi Tsukatani
Tetsuo Hirayama
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP3427076A priority Critical patent/JPS52119004A/en
Publication of JPS52119004A publication Critical patent/JPS52119004A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625—Arrangements in the private branch exchange

Abstract

PURPOSE:To expand the switching facility by having the capability of switching connection to the new extension even during calling the called extension.
JP3427076A 1976-03-31 1976-03-31 Switching system having capability of switching connection during call ing Pending JPS52119004A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3427076A JPS52119004A (en) 1976-03-31 1976-03-31 Switching system having capability of switching connection during call ing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3427076A JPS52119004A (en) 1976-03-31 1976-03-31 Switching system having capability of switching connection during call ing

Publications (1)

Publication Number Publication Date
JPS52119004A true JPS52119004A (en) 1977-10-06

Family

ID=12409459

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3427076A Pending JPS52119004A (en) 1976-03-31 1976-03-31 Switching system having capability of switching connection during call ing

Country Status (1)

Country Link
JP (1) JPS52119004A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55137758A (en) * 1979-04-13 1980-10-27 Nec Corp Extension telephone set connection switching system
JPS5963854A (en) * 1982-10-04 1984-04-11 Nec Corp Connecting method of originating call
JPS59193690A (en) * 1983-04-18 1984-11-02 Tamura Electric Works Ltd Key telephone set
JPS63187758A (en) * 1987-01-29 1988-08-03 Fujitsu Ltd Callee calling control system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55137758A (en) * 1979-04-13 1980-10-27 Nec Corp Extension telephone set connection switching system
JPS5963854A (en) * 1982-10-04 1984-04-11 Nec Corp Connecting method of originating call
JPS59193690A (en) * 1983-04-18 1984-11-02 Tamura Electric Works Ltd Key telephone set
JPS63187758A (en) * 1987-01-29 1988-08-03 Fujitsu Ltd Callee calling control system

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