CA621711A - Subscriber ringing in carrier telephone systems - Google Patents

Subscriber ringing in carrier telephone systems

Info

Publication number
CA621711A
CA621711A CA621711A CA621711DA CA621711A CA 621711 A CA621711 A CA 621711A CA 621711 A CA621711 A CA 621711A CA 621711D A CA621711D A CA 621711DA CA 621711 A CA621711 A CA 621711A
Authority
CA
Canada
Prior art keywords
telephone systems
carrier telephone
subscriber ringing
ringing
subscriber
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
CA621711A
Inventor
L. Bonner Arthur
C. Donaldson John
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA621711A publication Critical patent/CA621711A/en
Expired legal-status Critical Current

Links

CA621711A Subscriber ringing in carrier telephone systems Expired CA621711A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA621711T

Publications (1)

Publication Number Publication Date
CA621711A true CA621711A (en) 1961-06-06

Family

ID=35876896

Family Applications (1)

Application Number Title Priority Date Filing Date
CA621711A Expired CA621711A (en) Subscriber ringing in carrier telephone systems

Country Status (1)

Country Link
CA (1) CA621711A (en)

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