CA562754A - Toll switching telephone system - Google Patents

Toll switching telephone system

Info

Publication number
CA562754A
CA562754A CA562754A CA562754DA CA562754A CA 562754 A CA562754 A CA 562754A CA 562754 A CA562754 A CA 562754A CA 562754D A CA562754D A CA 562754DA CA 562754 A CA562754 A CA 562754A
Authority
CA
Canada
Prior art keywords
telephone system
switching telephone
toll switching
toll
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
CA562754A
Other languages
French (fr)
Inventor
E. Lomax Clarence
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 Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA562754A publication Critical patent/CA562754A/en
Expired legal-status Critical Current

Links

CA562754A Toll switching telephone system Expired CA562754A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA562754T

Publications (1)

Publication Number Publication Date
CA562754A true CA562754A (en) 1958-09-02

Family

ID=35729197

Family Applications (1)

Application Number Title Priority Date Filing Date
CA562754A Expired CA562754A (en) Toll switching telephone system

Country Status (1)

Country Link
CA (1) CA562754A (en)

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