CA836656A - Telephone line transfer circuits - Google Patents

Telephone line transfer circuits

Info

Publication number
CA836656A
CA836656A CA836656A CA836656DA CA836656A CA 836656 A CA836656 A CA 836656A CA 836656 A CA836656 A CA 836656A CA 836656D A CA836656D A CA 836656DA CA 836656 A CA836656 A CA 836656A
Authority
CA
Canada
Prior art keywords
telephone line
line transfer
transfer circuits
circuits
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
CA836656A
Inventor
Derek Leyburn
Original Assignee
Bell Telephone Company of Canada
Publication date
Application granted granted Critical
Publication of CA836656A publication Critical patent/CA836656A/en
Expired legal-status Critical Current

Links

CA836656A Telephone line transfer circuits Expired CA836656A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA836656T

Publications (1)

Publication Number Publication Date
CA836656A true CA836656A (en) 1970-03-10

Family

ID=36320851

Family Applications (1)

Application Number Title Priority Date Filing Date
CA836656A Expired CA836656A (en) Telephone line transfer circuits

Country Status (1)

Country Link
CA (1) CA836656A (en)

Similar Documents

Publication Publication Date Title
CA978628A (en) Electronic communication switching system
CA966593A (en) Line busy circuit
CA931290A (en) Telephone circuits utilizing active elements
CA941082A (en) Telephone subscribers instrument circuits
CA930882A (en) Telephone circuits utilizing active elements
CA936711A (en) Transfer device
CA930883A (en) Telephone circuits
CA941943A (en) Call transfer system
CA964768A (en) Selecting circuits
CA961967A (en) Communication line circuitry
CA944029A (en) Pure nonlinear transfer circuit
CA836656A (en) Telephone line transfer circuits
CA957783A (en) Printed circuits
AU4603872A (en) Telephone circuits
CA953045A (en) Telephone auto-answering device
CA834836A (en) Party line circuits
CA938040A (en) Telephone subscriber line circuit
CA913819A (en) Telephone anti-sidetone circuit
CA858656A (en) Hybridless signal transfer circuits
CA836658A (en) Telephone line transfer and foreign exchange circuits
CA836652A (en) Automatic telephone voice-data transfer circuit
CA859254A (en) Subscriber telephone circuit
CA854796A (en) Telephone set
CA840018A (en) Transfer and signaling circuit
CA852345A (en) Switching circuits