CA735035A - Telephone call progress recording system - Google Patents

Telephone call progress recording system

Info

Publication number
CA735035A
CA735035A CA735035A CA735035DA CA735035A CA 735035 A CA735035 A CA 735035A CA 735035 A CA735035 A CA 735035A CA 735035D A CA735035D A CA 735035DA CA 735035 A CA735035 A CA 735035A
Authority
CA
Canada
Prior art keywords
telephone call
recording system
call progress
progress recording
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
CA735035A
Inventor
C. Avery Robert
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 CA735035A publication Critical patent/CA735035A/en
Expired legal-status Critical Current

Links

CA735035A Telephone call progress recording system Expired CA735035A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA735035T

Publications (1)

Publication Number Publication Date
CA735035A true CA735035A (en) 1966-05-24

Family

ID=36133192

Family Applications (1)

Application Number Title Priority Date Filing Date
CA735035A Expired CA735035A (en) Telephone call progress recording system

Country Status (1)

Country Link
CA (1) CA735035A (en)

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