The current HomePod can't get the contact data in the user's address book, so it can't make a call. However, the user can make a call on the iPhone and transfer the audio output to HomePod. Similarly, when receiving a call, HomePod will not ring. Once the iPhone is connected, the audio can be transferred to the HomePod. In addition to making calls, HomePod can also listen to voice messages and search for call logs.
Like other Apple software systems, HomePod OS 12.0 supports the 'Find My iPhone' command, we can ask Siri to locate their iPhone and make the iPhone beep.