JPH0311706B2 - - Google Patents

Info

Publication number
JPH0311706B2
JPH0311706B2 JP59023788A JP2378884A JPH0311706B2 JP H0311706 B2 JPH0311706 B2 JP H0311706B2 JP 59023788 A JP59023788 A JP 59023788A JP 2378884 A JP2378884 A JP 2378884A JP H0311706 B2 JPH0311706 B2 JP H0311706B2
Authority
JP
Japan
Prior art keywords
subscriber
call
encrypted information
calling
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.)
Expired - Lifetime
Application number
JP59023788A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60172873A (ja
Inventor
Takashi Hoshi
Yukio Tanaka
Makoto Shinooka
Yoichi Sakai
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.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP2378884A priority Critical patent/JPS60172873A/ja
Publication of JPS60172873A publication Critical patent/JPS60172873A/ja
Publication of JPH0311706B2 publication Critical patent/JPH0311706B2/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
    • H04M3/436—Arrangements for screening incoming calls, i.e. evaluating the characteristics of a call before deciding whether to answer it

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
JP2378884A 1984-02-10 1984-02-10 限定着信方式 Granted JPS60172873A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2378884A JPS60172873A (ja) 1984-02-10 1984-02-10 限定着信方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2378884A JPS60172873A (ja) 1984-02-10 1984-02-10 限定着信方式

Publications (2)

Publication Number Publication Date
JPS60172873A JPS60172873A (ja) 1985-09-06
JPH0311706B2 true JPH0311706B2 (enExample) 1991-02-18

Family

ID=12120060

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2378884A Granted JPS60172873A (ja) 1984-02-10 1984-02-10 限定着信方式

Country Status (1)

Country Link
JP (1) JPS60172873A (enExample)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5949624B2 (ja) * 1977-04-19 1984-12-04 日本電信電話株式会社 電話予約方式
JPS5664554A (en) * 1979-10-31 1981-06-01 Nec Corp Exchange service control system
JPS5758442A (en) * 1980-09-25 1982-04-08 Nec Corp Communication controller
JPS58184860A (ja) * 1982-04-22 1983-10-28 Nec Corp 特定加入者着信接続方法
JPS58187054A (ja) * 1982-04-27 1983-11-01 Toshiba Corp 音声・デ−タメイル話者照合方式

Also Published As

Publication number Publication date
JPS60172873A (ja) 1985-09-06

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