CA594960A - "wake up" or "morning call" system for automatically signaling private branch exchange extension stations - Google Patents

"wake up" or "morning call" system for automatically signaling private branch exchange extension stations

Info

Publication number
CA594960A
CA594960A CA594960A CA594960DA CA594960A CA 594960 A CA594960 A CA 594960A CA 594960 A CA594960 A CA 594960A CA 594960D A CA594960D A CA 594960DA CA 594960 A CA594960 A CA 594960A
Authority
CA
Canada
Prior art keywords
wake
private branch
branch exchange
morning call
exchange extension
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
CA594960A
Inventor
W. Henches Eugene
R. Sheldon Ivan
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 CA594960A publication Critical patent/CA594960A/en
Expired legal-status Critical Current

Links

CA594960A "wake up" or "morning call" system for automatically signaling private branch exchange extension stations Expired CA594960A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA594960T

Publications (1)

Publication Number Publication Date
CA594960A true CA594960A (en) 1960-03-22

Family

ID=35808487

Family Applications (1)

Application Number Title Priority Date Filing Date
CA594960A Expired CA594960A (en) "wake up" or "morning call" system for automatically signaling private branch exchange extension stations

Country Status (1)

Country Link
CA (1) CA594960A (en)

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