CA858654A - Telephone call timing circuit - Google Patents

Telephone call timing circuit

Info

Publication number
CA858654A
CA858654A CA858654A CA858654DA CA858654A CA 858654 A CA858654 A CA 858654A CA 858654 A CA858654 A CA 858654A CA 858654D A CA858654D A CA 858654DA CA 858654 A CA858654 A CA 858654A
Authority
CA
Canada
Prior art keywords
telephone call
timing circuit
call timing
circuit
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
CA858654A
Inventor
Leyburn Derek
S. Kyles James
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.)
Bell Telephone Company of Canada
Original Assignee
Bell Telephone Company of Canada
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 Bell Telephone Company of Canada filed Critical Bell Telephone Company of Canada
Application granted granted Critical
Publication of CA858654A publication Critical patent/CA858654A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/04—Recording calls, or communications in printed, perforated or other permanent form

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
CA858654A 1968-04-04 1968-04-04 Telephone call timing circuit Expired CA858654A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA16749 1968-04-04

Publications (1)

Publication Number Publication Date
CA858654A true CA858654A (en) 1970-12-15

Family

ID=4084151

Family Applications (1)

Application Number Title Priority Date Filing Date
CA858654A Expired CA858654A (en) 1968-04-04 1968-04-04 Telephone call timing circuit

Country Status (1)

Country Link
CA (1) CA858654A (en)

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