Internal communications

Hi folks!

I’m searching for functionality to communicate (a video call/regular call, maybe) between registered Persons in the same homeassistant instance.
Ideally with broadcast option.

Best offer would be if the intercom would include answering machine, but I feel it might fall to the separate feature - viewing the logs, event logs, listening recorded calls etc. Any ideas are highly appreciated.

I saw a video for the commercial Control4 system that had touchscreen controls in many rooms and a big feature was to use them as an intercom.

A standard, integrated intercom would be a great addition, particularly if it leveraged existing TTS broadcasts and other audio player functionality.