Calling all renters – Ring just turned its Intercom into a video doorbell with these new features

For those who live in shared or rented accommodation where it’s tricky to install a video doorbell, Ring Intercom is a great ...
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Intercom System with Telephone-Based Door Entry

The circuit provides a simple illustration of a door phone intercom system having a two-way communication using the features of LM386 amplifier. Intercom – short for intercommunication, is an ...