That's insane to me.
I don't want phone calls, and I certainly don't really care for emails, way over used.
As a person that got used to being online with IRC and Usenet, I gotta say Teams (as a pain in the ass as it is) is the best way to communicate (if that is the chat type tool you have).
You don't have to respond right away, you have the information collected in chat channels, you can bring in others into the chat.
But most importantly: it is the only one that makes sense with asynchronous remote work.
A phone call? I tell people I do not have a phone anymore, there is no number to call. Why would you want interruption?