Talkback Communication System for Buildings

This page is the CodyCross answer for the clue below from The 80s, Group 792, Puzzle 5 (Liberty Spikes).

Question is: Talkback Communication System for Buildings

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.