intercommunication system

English Thesaurus

1. a communication system linking different rooms within a building or ship etc (noun.artifact)

hypernym	:	communication system,
definition	:	a system for communicating (noun.artifact)

hyponym	:	interphone,
definition	:	a telephonic intercommunication system linking different rooms in a building or ship etc (noun.artifact)

part holonym	:	intercom speaker, squawk box, squawker,
definition	:	the loudspeaker on an intercom or public address system (noun.artifact)