Doorphone Entry Technology System
This page is the CodyCross answer for the clue below from Taking Care of Our Planet, Group 1580, Puzzle 2 (Turn Off Electronics).
Question is: Doorphone Entry Technology System
and the answer is: INTERCOM
Word Meaning:
INTERCOM — An independent, telephonic communication system, set up around and throughout a building, complex, or residence, typically for access control.
Definitions from Wiktionary.