Telephone handsets

Details Telephone handsets Telephone handsets

H - Electricity

04

M

379/90

H04M 1/00 (2006.01) H04M 19/02 (2006.01) H04M 19/04 (2006.01)

Patent

CA 1160782

ABSTRACT OF DISCLOSURE: A telephone subscriber subset including a transducer for generating audible signalling tone information in which the signalling tones are received at the input terminal as substantially sinusoidal electrical waveforms and including conversion means within the handset for conversion of the signalling tones to a substantially non-sinusoidal electrical wave forms before feeding to the transducer.

356996

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