JPS55117369A - Telephone exchange system - Google Patents

Telephone exchange system

Info

Publication number
JPS55117369A
JPS55117369A JP2416779A JP2416779A JPS55117369A JP S55117369 A JPS55117369 A JP S55117369A JP 2416779 A JP2416779 A JP 2416779A JP 2416779 A JP2416779 A JP 2416779A JP S55117369 A JPS55117369 A JP S55117369A
Authority
JP
Japan
Prior art keywords
telephone
circuit
exchange
calling
case
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
JP2416779A
Other languages
Japanese (ja)
Inventor
Takao Ito
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
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2416779A priority Critical patent/JPS55117369A/en
Publication of JPS55117369A publication Critical patent/JPS55117369A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W99/00—Subject matter not provided for in other groups of this subclass

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To avoid the useless monopolization of the telephone circuit under which the calling is continued with the circuit not being set up, by sending the circuit swtich signal to the exchange to perform the circuit swtiching in case the called continuation time exceeds the prescribed level. CONSTITUTION:In case the telephone exchange is carried out for connection between the portable radio telephone set and the telephone circuit, exchange 3 performes the exchange action with supply of the dial information of calling telephone 1 to exchange 3. Then radio telephone 2 is called via radio station 4, and the talking becomes possible to telephone 1 with the answer given from the subscriber via telephone 2. In this case, exchange 3 memorizes temporarily the dial information from telephone 1 into the internal memory. And the circuit switch signal is sent to exchange 3 when the called continuation time exceeds the prescribed level, and thus the circuit switching is performed. In such way, the useless monopolization of the telephone circuit under which the calling is continued with the circuit not being set up to telephone 2 can be avoided.
JP2416779A 1979-03-02 1979-03-02 Telephone exchange system Pending JPS55117369A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2416779A JPS55117369A (en) 1979-03-02 1979-03-02 Telephone exchange system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2416779A JPS55117369A (en) 1979-03-02 1979-03-02 Telephone exchange system

Publications (1)

Publication Number Publication Date
JPS55117369A true JPS55117369A (en) 1980-09-09

Family

ID=12130783

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2416779A Pending JPS55117369A (en) 1979-03-02 1979-03-02 Telephone exchange system

Country Status (1)

Country Link
JP (1) JPS55117369A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03157093A (en) * 1989-11-14 1991-07-05 Fujitsu General Ltd Cordless telephone system
JPH03157094A (en) * 1989-11-14 1991-07-05 Fujitsu General Ltd Cordless telephone system
JPH05252276A (en) * 1992-03-04 1993-09-28 Tamura Electric Works Ltd Telephone set with di service function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03157093A (en) * 1989-11-14 1991-07-05 Fujitsu General Ltd Cordless telephone system
JPH03157094A (en) * 1989-11-14 1991-07-05 Fujitsu General Ltd Cordless telephone system
JPH05252276A (en) * 1992-03-04 1993-09-28 Tamura Electric Works Ltd Telephone set with di service function

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