From my point of view I think Copilot will make a huge impact on Teams Calling and Teams Voice.
Companies who use only mobile and think that is what they need, well I think you are wrong.
Let's say you have a talk with a customer You are enabled for M365 Copilot and has Teams in Copilot.
During the call we ask Copilot to make a summary so far for the call
Now we just have to wait for the M365 Copilot who comes soon.