MacRumors published a story that Apple has released 14.1 Software for HomePod with Intercom and HomePod mini support.
Apple Releases 14.1 Software for HomePod With Intercom and HomePod Mini Support
Alongside iOS and iPadOS 14.1, Apple today released new 14.1 software for the HomePod, which includes a number of new updates such as support for the Intercom feature that allows you to speak to anyone in the home on iPhone, iPad, HomePod, and more.
Apple Releases 14.1 Software for HomePod With Intercom and HomePod Mini Support