no one rings the doorbell anymore. when was the last time ups, usps, fedex etc rang the bell.
they dont
and u will get the line crossing alert even before that, if u cared about the used less feature... not sure if hik has that though...
no one talks to their doorbell in 2024
and yes, u can receive notifications in BI with this doorbell, without the app.
maybe ring and wyze are for you....