Calling - Do you call instead of IM when communication is not simple?

Scott:  Did you say to me, you would contact Mike on Teams to do it collaboratively... rather than email?

Dave:  I agreed I'll contact them over Teams as suggested by Sophie

Scott:  Isn't that what I just said? (and you said you were sending emails)

Dave:  Hold on... I don't understand you anymore, <mark>can we switch to voice?</mark>