Aviation Cabin Crew Communication System AVSA-85-B for Efficient In-Flight Communication

Aviation flight attendants internal communication equipment (AVSA-B) is designed to enable flight attendants:
- to provide the crew of flight attendants with internal communication among themselves;
- to provide them with an opportunity to communicate internally with flight crew members;
- for loud-speaking passenger notification via AVSA-O loud-speaking notification equipment
- to provide service-call signalling of the Chief Passenger at special facilities.