Such a doorbell camera also complements, replaces and/or expands conventional doorbell functions based on these processing and communication capabilities. The doorbell camera is mounted on or in proximity to a doorframe where a conventional doorbell may be mounted, and is electrically coupled to a power supply that may have been used to power the conventional doorbell. Specifically, the doorbell camera has one or more of a speaker, a microphone, a lens assembly, an image sensor, a waterproof device housing, a waterproof button assembly, light emitting diodes LEDs, infrared IR illuminators, a rechargeable battery and corresponding compensation circuit, an adjustable mounting plate, antennas and transceivers, a processor, and memory storing programs executed by the processor. In one aspect, a method is implemented for controlling a doorbell camera having a doorbell housing and a doorbell button mounted on a front cover plate of the doorbell housing. The doorbell housing contains a camera module, an LED indicator, a processor and memory including programs executed by the processor. The doorbell camera is electrically coupled to a remote chime via a bypass unit powered by a transformer that provides an input AC voltage.