GB2064917B - Emergency telephone networks - Google Patents

Emergency telephone networks

Info

Publication number
GB2064917B
GB2064917B GB8038695A GB8038695A GB2064917B GB 2064917 B GB2064917 B GB 2064917B GB 8038695 A GB8038695 A GB 8038695A GB 8038695 A GB8038695 A GB 8038695A GB 2064917 B GB2064917 B GB 2064917B
Authority
GB
United Kingdom
Prior art keywords
telephone networks
emergency telephone
emergency
networks
telephone
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
GB8038695A
Other languages
English (en)
Other versions
GB2064917A (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.)
Deutsche Telephonwerke und Kabelindustrie AG
Original Assignee
Deutsche Telephonwerke und Kabelindustrie AG
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 Deutsche Telephonwerke und Kabelindustrie AG filed Critical Deutsche Telephonwerke und Kabelindustrie AG
Publication of GB2064917A publication Critical patent/GB2064917A/en
Application granted granted Critical
Publication of GB2064917B publication Critical patent/GB2064917B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
    • 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)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
GB8038695A 1979-12-07 1980-12-03 Emergency telephone networks Expired GB2064917B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792949757 DE2949757A1 (de) 1979-12-07 1979-12-07 Verfahren zur betriesfaehigkeitskontrolle von leitungsabschnitten und erreichbarkeit von notrufabfragestellen

Publications (2)

Publication Number Publication Date
GB2064917A GB2064917A (en) 1981-06-17
GB2064917B true GB2064917B (en) 1983-11-23

Family

ID=6088130

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8038695A Expired GB2064917B (en) 1979-12-07 1980-12-03 Emergency telephone networks

Country Status (8)

Country Link
BE (1) BE885464A (it)
DE (1) DE2949757A1 (it)
DK (1) DK478280A (it)
FR (1) FR2471706A1 (it)
GB (1) GB2064917B (it)
IT (1) IT1133185B (it)
LU (1) LU82722A1 (it)
NL (1) NL8004929A (it)

Also Published As

Publication number Publication date
LU82722A1 (de) 1980-12-15
FR2471706A1 (fr) 1981-06-19
GB2064917A (en) 1981-06-17
DE2949757A1 (de) 1981-06-11
DK478280A (da) 1981-06-08
BE885464A (fr) 1981-01-16
NL8004929A (nl) 1981-07-01
IT1133185B (it) 1986-07-09
IT8025161A0 (it) 1980-10-07

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Legal Events

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