What is the purpose of the ATT button on the CRJ 700?

The ATT button on the CRJ 700 is designated specifically for flight attendant to flight attendant communications. This functionality allows crew members to communicate effectively with each other during the flight, which is crucial for safety and coordination of service.

In high-paced environments like an aircraft, immediate and clear communication among the crew is vital, especially in managing passenger needs and handling in-flight situations. The ability to quickly relay messages or alerts can enhance the overall efficiency of the cabin crew operations and ensures that they can effectively respond to any circumstances that arise during the flight.

The other options involve communications that are directed either to pilots or passengers. The ATT button does not serve these purposes; instead, it is focused solely on facilitating internal crew communication.