GB2204464A - Telephone system - Google Patents

Telephone system

Info

Publication number
GB2204464A
GB2204464A GB08813681A GB8813681A GB2204464A GB 2204464 A GB2204464 A GB 2204464A GB 08813681 A GB08813681 A GB 08813681A GB 8813681 A GB8813681 A GB 8813681A GB 2204464 A GB2204464 A GB 2204464A
Authority
GB
United Kingdom
Prior art keywords
extension
identifying signal
telephone system
signal
calling
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
GB08813681A
Other versions
GB8813681D0 (en
Inventor
Bernard Dollman Parker
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB8813681D0 publication Critical patent/GB8813681D0/en
Publication of GB2204464A publication Critical patent/GB2204464A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/57—Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

In a telephone system a calling extension includes means to transmit an identifying signal characteristic of the calling extension, to a called extension which has a display responsive to receipt of the identifying signal to indicate the identity of the calling extension. On receipt of an identifying signal the called extension transmits a return signal to the calling extension, which return signal serves to terminate transmission of the identifying signal.
GB08813681A 1986-10-13 1987-10-13 Telephone system Pending GB2204464A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868624514A GB8624514D0 (en) 1986-10-13 1986-10-13 Telephone systems
PCT/GB1987/000717 WO1988002964A1 (en) 1986-10-13 1987-10-13 Telephone system

Publications (2)

Publication Number Publication Date
GB8813681D0 GB8813681D0 (en) 1988-07-27
GB2204464A true GB2204464A (en) 1988-11-09

Family

ID=10605664

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868624514A Pending GB8624514D0 (en) 1986-10-13 1986-10-13 Telephone systems
GB08813681A Pending GB2204464A (en) 1986-10-13 1987-10-13 Telephone system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868624514A Pending GB8624514D0 (en) 1986-10-13 1986-10-13 Telephone systems

Country Status (2)

Country Link
GB (2) GB8624514D0 (en)
WO (1) WO1988002964A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0420204A3 (en) * 1989-09-28 1993-01-27 Siemens Aktiengesellschaft Method for the transmission of subscriber data from one secret subscriber to another in communication exchanges
DE19914553A1 (en) * 1999-03-31 2000-10-05 Helmuth Eberst Multifunction display device for telephone

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2106751A (en) * 1981-09-03 1983-04-13 Micro Tek Inc Security identification system using pulse code modulation
US4443664A (en) * 1982-07-02 1984-04-17 Rca Corporation Telephone station incorporating exchange message system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3429457A1 (en) * 1984-08-10 1986-02-20 Atis Assmann GmbH, 6380 Bad Homburg METHOD FOR IDENTIFYING SELECTED OR SELECTED TERMINAL DEVICES AND DEVICE FOR CARRYING OUT THE METHOD

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2106751A (en) * 1981-09-03 1983-04-13 Micro Tek Inc Security identification system using pulse code modulation
US4443664A (en) * 1982-07-02 1984-04-17 Rca Corporation Telephone station incorporating exchange message system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WO A 86/01358 *

Also Published As

Publication number Publication date
WO1988002964A1 (en) 1988-04-21
GB8624514D0 (en) 1986-11-19
GB8813681D0 (en) 1988-07-27

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