CA778493A - Pbx dial conference trunk circuit - Google Patents

Pbx dial conference trunk circuit

Info

Publication number
CA778493A
CA778493A CA778493A CA778493DA CA778493A CA 778493 A CA778493 A CA 778493A CA 778493 A CA778493 A CA 778493A CA 778493D A CA778493D A CA 778493DA CA 778493 A CA778493 A CA 778493A
Authority
CA
Canada
Prior art keywords
trunk circuit
conference trunk
pbx dial
dial conference
pbx
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
CA778493A
Inventor
R. Trimmer Daniel
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 CA778493A publication Critical patent/CA778493A/en
Expired legal-status Critical Current

Links

CA778493A Pbx dial conference trunk circuit Expired CA778493A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA778493T

Publications (1)

Publication Number Publication Date
CA778493A true CA778493A (en) 1968-02-13

Family

ID=36225805

Family Applications (1)

Application Number Title Priority Date Filing Date
CA778493A Expired CA778493A (en) Pbx dial conference trunk circuit

Country Status (1)

Country Link
CA (1) CA778493A (en)

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