H - Electricity – 04 – M
Patent
H - Electricity
04
M
H04M 1/57 (2006.01) H04Q 3/72 (2006.01)
Patent
CA 2113125
An off-hook condition on the telephone line of the calling party is detected. When the off-hook condition is detected, an automatic dialer is initiated to dial a predetermined code which, when received by computers of the telephone company, will automatically block the transmission of information which identifies the calling party, and more specifically, the telephone number of the calling party.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Rosen Howard
LandOfFree
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