Method and apparatus for determining when a telephone...

Details Method and apparatus for determining when a telephone... Method and apparatus for determining when a telephone...

H - Electricity

04

M

379/57

H04M 11/06 (2006.01)

Patent

CA 1309526

Abstract of the Disclosure Apparatus in an automatic telecommunications system which communicates between a central location and at least one remote location over the switched telephone network, senses changes in loading of the telephone line which correspond to a telephone handset going off-hook, to serve as an indication that a handset has gone off-hook and to cause the automatic telecommunications system to relinquish its use of the telephone line, or not to itself go off-hook if a telephone handset is in use.

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