Intercom service allows the user to establish a dedicated priority call to any other station that is a member of the same intercom group within the same central office Special alerting, depending on customer premises equipment is provided for an incoming intercom call As part of the standard package the user can select either Auto Intercom or Dial Intercom
This feature lets you and someone in another room hold a conversation via the base and handset
An intercom is a small box with a microphone which is connected to a loudspeaker in another room. You use it to talk to the people in the other room. a communication system by which people in different parts of a building, aircraft etc can speak to each other (intercommunication (system))
An intercom allows you to call another system phone without using an outside line You can also use it to transfer outside calls to a co-worker by using the transfer button Each phone in the key system is assigned and intercom or extension number which is usually three digit long