GB1162484A - Unit for Selective Blocking of Subscribers for Telephone Exchanges. - Google Patents

Unit for Selective Blocking of Subscribers for Telephone Exchanges.

Info

Publication number
GB1162484A
GB1162484A GB1616568A GB1616568A GB1162484A GB 1162484 A GB1162484 A GB 1162484A GB 1616568 A GB1616568 A GB 1616568A GB 1616568 A GB1616568 A GB 1616568A GB 1162484 A GB1162484 A GB 1162484A
Authority
GB
United Kingdom
Prior art keywords
subscriber
store
call
subscribers
blocked
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
Application number
GB1616568A
Other languages
English (en)
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of GB1162484A publication Critical patent/GB1162484A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Exchange Systems With Centralized Control (AREA)
GB1616568A 1967-04-08 1968-04-04 Unit for Selective Blocking of Subscribers for Telephone Exchanges. Expired GB1162484A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST026717 1967-04-08

Publications (1)

Publication Number Publication Date
GB1162484A true GB1162484A (en) 1969-08-27

Family

ID=7461096

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1616568A Expired GB1162484A (en) 1967-04-08 1968-04-04 Unit for Selective Blocking of Subscribers for Telephone Exchanges.

Country Status (4)

Country Link
BE (1) BE731978A (enExample)
DE (1) DE1512981B2 (enExample)
ES (1) ES352547A1 (enExample)
GB (1) GB1162484A (enExample)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4277649A (en) * 1980-01-18 1981-07-07 Bell Telephone Laboratories, Incorporated Method and apparatus for screening telephone calls
US4358640A (en) 1980-11-25 1982-11-09 Murray Leonard Q Telephone security device
US6349134B1 (en) 1985-07-10 2002-02-19 Ronald A. Katz Technology Licensing, L.P. Telephonic-interface statistical analysis system
US6434223B2 (en) 1985-07-10 2002-08-13 Ronald A. Katz Technology Licensing, L.P. Telephone interface call processing system with call selectivity
US6512415B1 (en) 1985-07-10 2003-01-28 Ronald A. Katz Technology Licensing Lp. Telephonic-interface game control system
US6570967B2 (en) 1985-07-10 2003-05-27 Ronald A. Katz Technology Licensing, L.P. Voice-data telephonic interface control system
US6678360B1 (en) 1985-07-10 2004-01-13 Ronald A. Katz Technology Licensing, L.P. Telephonic-interface statistical analysis system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4277649A (en) * 1980-01-18 1981-07-07 Bell Telephone Laboratories, Incorporated Method and apparatus for screening telephone calls
US4358640A (en) 1980-11-25 1982-11-09 Murray Leonard Q Telephone security device
US6349134B1 (en) 1985-07-10 2002-02-19 Ronald A. Katz Technology Licensing, L.P. Telephonic-interface statistical analysis system
US6434223B2 (en) 1985-07-10 2002-08-13 Ronald A. Katz Technology Licensing, L.P. Telephone interface call processing system with call selectivity
US6512415B1 (en) 1985-07-10 2003-01-28 Ronald A. Katz Technology Licensing Lp. Telephonic-interface game control system
US6570967B2 (en) 1985-07-10 2003-05-27 Ronald A. Katz Technology Licensing, L.P. Voice-data telephonic interface control system
US6678360B1 (en) 1985-07-10 2004-01-13 Ronald A. Katz Technology Licensing, L.P. Telephonic-interface statistical analysis system

Also Published As

Publication number Publication date
BE731978A (enExample) 1969-10-24
DE1512981A1 (de) 1969-06-26
ES352547A1 (es) 1969-08-01
DE1512981B2 (de) 1975-07-17

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee