Can I answer an incoming phone call on my Apple Watch using Siri command?
This seems to be now possible with just &quot;Hey Siri&quot; and &quot;Answer the phone&quot;.
It is also possible with iOS v14.5 and compatible headphones. In Siri settings enable:

&quot;Allow Siri when locked&quot;
&quot;Announace Calls&quot; -&gt; always

And now you can answer by saying &quot;Answer&quot; when there's an incoming call. Doesn't work with Apple Watch though.
Ref: https://lifehacker.com/use-siris-ios-14-5-update-to-answer-calls-with-your-voi-1846774139