Short description of OfficeIntercom Communication Software 5.10: OfficeIntercom lets you use your computer to speak to others over the internet or your local office computer network. It works as a virtual intercom and feels a little like using a CB radio. To talk to anyone else who has installed OfficeIntercom anywhere in the world, just hold down a key on the keyboard. Speak into your computer's microphone and you will be heard through the other computer's speakers.