JPS5662456A - Restriction system for incoming call connection - Google Patents

Restriction system for incoming call connection

Info

Publication number
JPS5662456A
JPS5662456A JP13833579A JP13833579A JPS5662456A JP S5662456 A JPS5662456 A JP S5662456A JP 13833579 A JP13833579 A JP 13833579A JP 13833579 A JP13833579 A JP 13833579A JP S5662456 A JPS5662456 A JP S5662456A
Authority
JP
Japan
Prior art keywords
subscriber telephone
telephone set
connection
memory circuit
incoming call
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
JP13833579A
Other languages
Japanese (ja)
Inventor
Junichi Numakura
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 JP13833579A priority Critical patent/JPS5662456A/en
Publication of JPS5662456A publication Critical patent/JPS5662456A/en
Pending 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)

Abstract

PURPOSE:To enable to offer the transfer service as required, by restricting the connection of incoming call from a subscriber telephone set other than designated sets, through the designation of a subscriber telephone set on which no restriction is imposed for the connection in advance to the incoming call to the subscriber telephone set. CONSTITUTION:When a subscriber telephone set 1 makes a call and the number of the subscriber telephone set 2 is dialed, an outgoing register 3 receives it and a control circuit 4 identifies this number. The control circuit 4 retrieves the information designating the subscriber telephone set 1 and the content of a memory circuit 5 storing the connection nonrestriction subscriber telephone set information corresponding to the subscriber telephone set 2. If the memory circuit 5 has the same information as to the subscriber telephone number 1, the telephone sets 1 and 2 are connected, and if not, the connection is restricted. In this case, the content of the memory circuit 6 storing the connection representing terminal device information corresonding to the memory circuit 5 is retrieved to connect the terminal device designated at the memory circuit 6 with the subscriber telephone set 1.
JP13833579A 1979-10-26 1979-10-26 Restriction system for incoming call connection Pending JPS5662456A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13833579A JPS5662456A (en) 1979-10-26 1979-10-26 Restriction system for incoming call connection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13833579A JPS5662456A (en) 1979-10-26 1979-10-26 Restriction system for incoming call connection

Publications (1)

Publication Number Publication Date
JPS5662456A true JPS5662456A (en) 1981-05-28

Family

ID=15219496

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13833579A Pending JPS5662456A (en) 1979-10-26 1979-10-26 Restriction system for incoming call connection

Country Status (1)

Country Link
JP (1) JPS5662456A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03201653A (en) * 1989-12-27 1991-09-03 Toshiba Corp Call forward system for private exchange

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03201653A (en) * 1989-12-27 1991-09-03 Toshiba Corp Call forward system for private exchange

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