CA2186838C - Methode et dispositif de blocage pour equipement d'abonne - Google Patents

Methode et dispositif de blocage pour equipement d'abonne

Info

Publication number
CA2186838C
CA2186838C CA002186838A CA2186838A CA2186838C CA 2186838 C CA2186838 C CA 2186838C CA 002186838 A CA002186838 A CA 002186838A CA 2186838 A CA2186838 A CA 2186838A CA 2186838 C CA2186838 C CA 2186838C
Authority
CA
Canada
Prior art keywords
subscriber equipment
communications line
voltage
circuit
communications
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
CA002186838A
Other languages
English (en)
Other versions
CA2186838A1 (fr
Inventor
David Jeffrey Westergaard
Aaron James Bobick
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.)
Nortel Networks Ltd
Original Assignee
Northern 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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Priority to CA002186838A priority Critical patent/CA2186838C/fr
Publication of CA2186838A1 publication Critical patent/CA2186838A1/fr
Application granted granted Critical
Publication of CA2186838C publication Critical patent/CA2186838C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/48—Arrangements for recalling a calling subscriber when the wanted subscriber ceases to be busy

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Interface Circuits In Exchanges (AREA)
CA002186838A 1996-09-30 1996-09-30 Methode et dispositif de blocage pour equipement d'abonne Expired - Fee Related CA2186838C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002186838A CA2186838C (fr) 1996-09-30 1996-09-30 Methode et dispositif de blocage pour equipement d'abonne

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002186838A CA2186838C (fr) 1996-09-30 1996-09-30 Methode et dispositif de blocage pour equipement d'abonne

Publications (2)

Publication Number Publication Date
CA2186838A1 CA2186838A1 (fr) 1998-03-31
CA2186838C true CA2186838C (fr) 1999-12-14

Family

ID=4158996

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002186838A Expired - Fee Related CA2186838C (fr) 1996-09-30 1996-09-30 Methode et dispositif de blocage pour equipement d'abonne

Country Status (1)

Country Link
CA (1) CA2186838C (fr)

Also Published As

Publication number Publication date
CA2186838A1 (fr) 1998-03-31

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Legal Events

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MKLA Lapsed