Which system is designed to allow two-way communication inside a building and is distinct from a public address system?

Which system is designed to allow two-way communication inside a building and is distinct from a public address system?

• A. Intercom System
• B. Public Address System
• C. Paging System
• D. Nurse Call System

Answer: (A)

Intercom systems are built for direct, two-way voice communication between stations inside a building. You can start a conversation from one location and instantly hear and respond from another, which is what makes it distinct from a public address system that is mainly for broadcasting messages to many areas without direct replies. A public address system sends one-way announcements to multiple speakers, not a real-time back-and-forth link. A paging system shares messages but is typically treated as broadcast rather than private two-way chat. A nurse call system is designed to alert staff about a specific need in a patient area, not to facilitate general internal conversations. So the system designed for two-way internal communication, separate from a public address system, is the intercom.

Intercom systems are built for direct, two-way voice communication between stations inside a building. You can start a conversation from one location and instantly hear and respond from another, which is what makes it distinct from a public address system that is mainly for broadcasting messages to many areas without direct replies. A public address system sends one-way announcements to multiple speakers, not a real-time back-and-forth link. A paging system shares messages but is typically treated as broadcast rather than private two-way chat. A nurse call system is designed to alert staff about a specific need in a patient area, not to facilitate general internal conversations. So the system designed for two-way internal communication, separate from a public address system, is the intercom.