Abstract: A multi handset telephone system with a wireless telecom/doorbell module. The telecom/doorbell module has similar electronics as a cordless handset that includes audio and RF link with a base unit. A speakerphone functionality of a wireless telecom/doorbell audio processor is used to provide an intercom audio conversation. The wireless intercom/doorbell module is battery powered that is either charged by an AC adapter or by an existing doorbell wiring. The wireless intercom/doorbell module also work in parallel with the existing bell wiring. When a page key is pressed, the module pages the telephone system and shorts the doorbell wiring to make an existing bell ring. The doorbell module is coupled with a camera.

Abstract: A wireless multi-handset telephone system with integrated video monitoring. A speakerphone base unit, at least one camera module, at least one combination video/voice handset, and at least one voice handset operate together such that voice and data are transmitted (i) between the speakerphone base unit and the at least one camera module and (ii) between the speakerphone base unit and the at least one voice handset, and video images are transmitted from the at least one camera module to the at least one combination video/voice handset.

Abstract: A wireless multi-handset telephone system with integrated video monitoring. A speakerphone base unit, at least one camera module, at least one combination video/voice handset, and at least one voice handset operate together such that voice and data are transmitted (i) between the speakerphone base unit and the at least one camera module and (ii) between the speakerphone base unit and the at least one voice handset, and video images are transmitted from the at least one camera module to the at least one combination video/voice handset.