GB9104761D0 - Improvements in and relating to telephone systems - Google Patents

Improvements in and relating to telephone systems

Info

Publication number
GB9104761D0
GB9104761D0 GB919104761A GB9104761A GB9104761D0 GB 9104761 D0 GB9104761 D0 GB 9104761D0 GB 919104761 A GB919104761 A GB 919104761A GB 9104761 A GB9104761 A GB 9104761A GB 9104761 D0 GB9104761 D0 GB 9104761D0
Authority
GB
United Kingdom
Prior art keywords
relating
telephone systems
telephone
systems
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
GB919104761A
Other versions
GB2253542A (en
GB2253542B (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.)
ITECH Ltd
Original Assignee
ITECH 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 ITECH Ltd filed Critical ITECH Ltd
Priority to GB9104761A priority Critical patent/GB2253542B/en
Publication of GB9104761D0 publication Critical patent/GB9104761D0/en
Publication of GB2253542A publication Critical patent/GB2253542A/en
Application granted granted Critical
Publication of GB2253542B publication Critical patent/GB2253542B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/36—Statistical metering, e.g. recording occasions when traffic exceeds capacity of trunks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/38—Graded-service arrangements, i.e. some subscribers prevented from establishing certain connections

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Telephonic Communication Services (AREA)
GB9104761A 1991-03-07 1991-03-07 Improvements in and relating to telephone systems Expired - Fee Related GB2253542B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9104761A GB2253542B (en) 1991-03-07 1991-03-07 Improvements in and relating to telephone systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9104761A GB2253542B (en) 1991-03-07 1991-03-07 Improvements in and relating to telephone systems

Publications (3)

Publication Number Publication Date
GB9104761D0 true GB9104761D0 (en) 1991-04-17
GB2253542A GB2253542A (en) 1992-09-09
GB2253542B GB2253542B (en) 1995-04-26

Family

ID=10691114

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9104761A Expired - Fee Related GB2253542B (en) 1991-03-07 1991-03-07 Improvements in and relating to telephone systems

Country Status (1)

Country Link
GB (1) GB2253542B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5828734A (en) 1985-07-10 1998-10-27 Ronald A. Katz Technology Licensing, Lp Telephone interface call processing system with call selectivity
US6678360B1 (en) 1985-07-10 2004-01-13 Ronald A. Katz Technology Licensing, L.P. Telephonic-interface statistical analysis system
US4845739A (en) 1985-07-10 1989-07-04 Fdr Interactive Technologies Telephonic-interface statistical analysis system
US5359645A (en) 1985-07-10 1994-10-25 First Data Corporation Inc. Voice-data telephonic interface control system
US5793846A (en) 1985-07-10 1998-08-11 Ronald A. Katz Technology Licensing, Lp Telephonic-interface game control system
DE69431920D1 (en) * 1993-10-28 2003-01-30 Maldes Phoenix Ltd LOCKING DEVICE FOR A TELEPHONE SYSTEM
GB2297011B (en) * 1995-01-13 1999-03-10 Telsis Holdings Ltd Secure access telephony server systems
JPH09322205A (en) * 1996-05-24 1997-12-12 Oki Electric Ind Co Ltd Service function providing method for automatic exchange
CN1231815A (en) * 1996-09-30 1999-10-13 西门子公司 Real time call display for a switching computer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1149494A (en) * 1978-09-15 1983-07-05 Szymon Szwarcbier Telephone-switching system and novel public telephone instrument
GB2086187A (en) * 1980-10-09 1982-05-06 Standard Telephones Cables Ltd Toll barring
GB2104347A (en) * 1981-06-19 1983-03-02 Interaction Resources Limited Improvements in or relating to telephone sets
WO1987007800A1 (en) * 1986-06-13 1987-12-17 Keith Askham Telephone security system
GB2227906B (en) * 1988-12-23 1993-06-16 Rathdown Ind Ltd Telephone including a call barrer

Also Published As

Publication number Publication date
GB2253542A (en) 1992-09-09
GB2253542B (en) 1995-04-26

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Legal Events

Date Code Title Description
727 Application made for amendment of specification (sect. 27/1977)
727A Application for amendment of specification now open to opposition (sect. 27/1977)
727B Case decided by the comptroller ** specification amended (sect. 27/1977)
SP Amendment (slips) printed
711L Appl. made for correction of error (sect. 117/77) now open to opposition
711Z Erratum - applic. now open to opposition - sect. 117

Free format text: ERRATUM: THE ADVERTISEMENT THAT APPEARED IN THE PATENTS AND DESIGNS JOURNAL NO. 5771 DATED 15 DECEMBER 1999, SHOULD HAVE READ AS FOLLOWS: GB 2253542 ITECH LIMITED IMPROVEMENTS IN AND RELATING TO TELEPHONE SYSTEMS.

711G Correction allowed (sect. 117/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070307