entryphone

Noun

 * 1) An intercom system which enables someone, without opening the door, to converse with the person who has rung the doorbell.

Translations

 * French:
 * German: ;  Türsprechanlage, Türsprecher,
 * Hungarian:
 * Polish:
 * Russian:
 * Spanish: telefonillo
 * Ukrainian: домофо́н