buzz in (someone)

Translations
впускать (кого-то)
The receptionist will buzz in visitors once they arrive.
Ресепшионист впустит посетителей, как только они прибудут.
Definitions
To allow someone to enter a building or room by pressing a button that unlocks an electronic door, often after verifying their identity through an intercom system.
Words
buzz

verb
впустить
in

adverb
внутрь
someone

pronoun
кого-либо