H - Electricity – 04 – M
Patent
H - Electricity
04
M
H04M 1/00 (2006.01) H04M 19/04 (2006.01)
Patent
CA 2106342
The method of the present invention controls the alert generation of a cordless telephone, thus synchronizing all cordless telephones at a particular number. The base unit of the cordless telephone sends a ring start message in the sub- audible message stream to the handset unit. The handset then monitors the audible portion of the channel for a tone. Upon reception of the tone, the alert is generated until the handset receives the sub-audible ring stop message from the base unit.
Schellinger Michael J.
Sherman Charles L.
Gowling Lafleur Henderson Llp
Motorola Inc.
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