https://techcrunch.com/2020/10/13/apples-new-intercom-feature-will-let-you-shout-across-your-apple-devices/

Apple today introduced a new feature designed for use with its HomePod speakers, including its just-introduced HomePod Mini: Intercom. Similar to Alexa’s “announce” feature, Intercom will allow HomePod owners to leverage their smart speakers — and other Apple devices — to communicate with all family members at once.

The feature will make the most sense for households that have already bought into the Apple ecosystem, as you’ll be able to use Intercom across iPhone, iPad, Apple Watch, Mac and even AirPods and CarPlay.