GB2205716B - Emergency call system - Google Patents

Emergency call system

Info

Publication number
GB2205716B
GB2205716B GB8813555A GB8813555A GB2205716B GB 2205716 B GB2205716 B GB 2205716B GB 8813555 A GB8813555 A GB 8813555A GB 8813555 A GB8813555 A GB 8813555A GB 2205716 B GB2205716 B GB 2205716B
Authority
GB
United Kingdom
Prior art keywords
emergency call
call system
emergency
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.)
Expired - Lifetime
Application number
GB8813555A
Other versions
GB8813555D0 (en
GB2205716A (en
Inventor
David Jones
David I Abbott
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.)
Tunstall Telecom Ltd
Original Assignee
Tunstall Telecom 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 Tunstall Telecom Ltd filed Critical Tunstall Telecom Ltd
Publication of GB8813555D0 publication Critical patent/GB8813555D0/en
Publication of GB2205716A publication Critical patent/GB2205716A/en
Application granted granted Critical
Publication of GB2205716B publication Critical patent/GB2205716B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/014—Alarm signalling to a central station with two-way communication, e.g. with signalling back
    • 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

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Alarm Systems (AREA)
GB8813555A 1987-06-09 1988-06-08 Emergency call system Expired - Lifetime GB2205716B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878713462A GB8713462D0 (en) 1987-06-09 1987-06-09 Emergency call system

Publications (3)

Publication Number Publication Date
GB8813555D0 GB8813555D0 (en) 1988-07-13
GB2205716A GB2205716A (en) 1988-12-14
GB2205716B true GB2205716B (en) 1991-04-03

Family

ID=10618616

Family Applications (2)

Application Number Title Priority Date Filing Date
GB878713462A Pending GB8713462D0 (en) 1987-06-09 1987-06-09 Emergency call system
GB8813555A Expired - Lifetime GB2205716B (en) 1987-06-09 1988-06-08 Emergency call system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB878713462A Pending GB8713462D0 (en) 1987-06-09 1987-06-09 Emergency call system

Country Status (1)

Country Link
GB (2) GB8713462D0 (en)

Also Published As

Publication number Publication date
GB8813555D0 (en) 1988-07-13
GB8713462D0 (en) 1987-07-15
GB2205716A (en) 1988-12-14

Similar Documents

Publication Publication Date Title
GB2225194B (en) Group emergency call system
GB8824507D0 (en) Emergency lighting system
GB2180085B (en) Emergency supervisory system
GB8724179D0 (en) Telephone system
EP0264092A3 (en) Telephone system
GB2166321B (en) Emergency call unit
GB2219467B (en) Teleconference system
GB8724228D0 (en) Telephone systems
GB8901344D0 (en) Emergency rescue system
GB2206264B (en) Emergency call system
ZA891417B (en) Hoist system
GB8628570D0 (en) Emergency stop system
GB8718068D0 (en) Telephone paging system
GB2231844B (en) Emergency escape system
EP0281386A3 (en) Branched telephone system
GB2206017B (en) Emergency call system
GB8427776D0 (en) Emergency call system
GB2160687B (en) Elevator call signalling system
GB2205716B (en) Emergency call system
GB2193061B (en) Emergency call acceptor
GB8813681D0 (en) Telephone system
GB8718863D0 (en) Emergency system
GB8427775D0 (en) Emergency call system
GB8718032D0 (en) Walkway system
GB8804675D0 (en) Emergency crane system

Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20040608