Intercoms
These systems usually consist of a telephone receiver and keyboard or a speaker, microphone, and keys. These systems are typically installed at building entrances with a certain number of residents. These systems allow visitors to call selected residents by pressing the appropriate keys and speak with them.
Source: "Explanations to the Commodity Nomenclature of Foreign Economic Activity of the Russian Federation (HSN of Russia)" (prepared by the Russian Federal Customs Service) (volume 4, sections XVI - XXI, groups 85 - 97)
Понятие «домофоны» мужского рода.
| Падеж | Единственное число | Множественное число |
|---|---|---|
| Р | домофона | домофонов |
| Д | домофону | домофонам |
| В | домофон | домофоны |
| Т | домофоном | домофонами |
| П | домофоне | домофонах |