JPS56156036A - Signal transmitting and receiving system of radio switchboard - Google Patents

Signal transmitting and receiving system of radio switchboard

Info

Publication number
JPS56156036A
JPS56156036A JP5973680A JP5973680A JPS56156036A JP S56156036 A JPS56156036 A JP S56156036A JP 5973680 A JP5973680 A JP 5973680A JP 5973680 A JP5973680 A JP 5973680A JP S56156036 A JPS56156036 A JP S56156036A
Authority
JP
Japan
Prior art keywords
signal transmitting
malicious call
received
mobile machine
control station
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
JP5973680A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6353742B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Haruo Yanagi
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
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP5973680A priority Critical patent/JPS56156036A/ja
Publication of JPS56156036A publication Critical patent/JPS56156036A/ja
Publication of JPS6353742B2 publication Critical patent/JPS6353742B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
JP5973680A 1980-05-06 1980-05-06 Signal transmitting and receiving system of radio switchboard Granted JPS56156036A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5973680A JPS56156036A (en) 1980-05-06 1980-05-06 Signal transmitting and receiving system of radio switchboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5973680A JPS56156036A (en) 1980-05-06 1980-05-06 Signal transmitting and receiving system of radio switchboard

Publications (2)

Publication Number Publication Date
JPS56156036A true JPS56156036A (en) 1981-12-02
JPS6353742B2 JPS6353742B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1988-10-25

Family

ID=13121788

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5973680A Granted JPS56156036A (en) 1980-05-06 1980-05-06 Signal transmitting and receiving system of radio switchboard

Country Status (1)

Country Link
JP (1) JPS56156036A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
JPS6353742B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1988-10-25

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