intercom

Then she pressed the alert button on an intercom attached to the wall.

At one massive home nearby, a man who answered via intercom said he had not heard anything about the vandalism.

Shortly before 6 a.m., a Delta representative took to the intercom at LAX to tell passengers that the airport was still allowing planes to land, but that for the time being all flights were grounded.

Only by being on the air live and remaining in touch with New York headquarters through a dedicated intercom was she able to remain in contact with the network’s control room.

The organization also better secured its internal files, got new cellphones and laptops, and added new intercom and doorbell screening systems.