GB2300992B - Monitoring of telephone systems - Google Patents

Monitoring of telephone systems

Info

Publication number
GB2300992B
GB2300992B GB9510029A GB9510029A GB2300992B GB 2300992 B GB2300992 B GB 2300992B GB 9510029 A GB9510029 A GB 9510029A GB 9510029 A GB9510029 A GB 9510029A GB 2300992 B GB2300992 B GB 2300992B
Authority
GB
United Kingdom
Prior art keywords
monitoring
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.)
Expired - Fee Related
Application number
GB9510029A
Other versions
GB2300992A (en
GB9510029D0 (en
Inventor
Doug Nelson
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.)
Cooper Security Ltd
Original Assignee
Scantronic 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 Scantronic Ltd filed Critical Scantronic Ltd
Priority to GB9510029A priority Critical patent/GB2300992B/en
Publication of GB9510029D0 publication Critical patent/GB9510029D0/en
Publication of GB2300992A publication Critical patent/GB2300992A/en
Application granted granted Critical
Publication of GB2300992B publication Critical patent/GB2300992B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Alarm Systems (AREA)
GB9510029A 1995-05-18 1995-05-18 Monitoring of telephone systems Expired - Fee Related GB2300992B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9510029A GB2300992B (en) 1995-05-18 1995-05-18 Monitoring of telephone systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9510029A GB2300992B (en) 1995-05-18 1995-05-18 Monitoring of telephone systems

Publications (3)

Publication Number Publication Date
GB9510029D0 GB9510029D0 (en) 1995-07-12
GB2300992A GB2300992A (en) 1996-11-20
GB2300992B true GB2300992B (en) 2000-03-08

Family

ID=10774636

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9510029A Expired - Fee Related GB2300992B (en) 1995-05-18 1995-05-18 Monitoring of telephone systems

Country Status (1)

Country Link
GB (1) GB2300992B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2319925A (en) * 1996-11-29 1998-06-03 Northern Telecom Ltd Remote data access
SE518535C2 (en) * 1996-12-04 2002-10-22 Telia Ab Alarm Communications
GB2322034A (en) * 1996-12-06 1998-08-12 Rotadata Ltd Telephone line monitoring arrangement
FI117992B (en) * 2005-10-11 2007-05-15 Telcont Oy Device, method and system for improving alarm transmission security in an alarm system
GB2469230B (en) * 2008-12-04 2012-04-25 Csl Dualcom Ltd Electronic device
GB2486725A (en) * 2010-12-23 2012-06-27 Burnside Telecom Ltd Establishing a status handshake between a cellular based monitoring unit and a remotely located monitoring station

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4086434A (en) * 1976-09-07 1978-04-25 Leo P. Christiansen Remote condition reporting system
US4097696A (en) * 1975-09-15 1978-06-27 Nyhuis Robert J Method and apparatus for polling security alarm installations
US4284849A (en) * 1979-11-14 1981-08-18 Gte Products Corporation Monitoring and signalling system
US4641127A (en) * 1985-01-30 1987-02-03 Hogan Dennis R Security and fire protection system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4097696A (en) * 1975-09-15 1978-06-27 Nyhuis Robert J Method and apparatus for polling security alarm installations
US4086434A (en) * 1976-09-07 1978-04-25 Leo P. Christiansen Remote condition reporting system
US4284849A (en) * 1979-11-14 1981-08-18 Gte Products Corporation Monitoring and signalling system
US4641127A (en) * 1985-01-30 1987-02-03 Hogan Dennis R Security and fire protection system

Also Published As

Publication number Publication date
GB2300992A (en) 1996-11-20
GB9510029D0 (en) 1995-07-12

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20060518