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I have interpreted this post to mean a work-related call, since you wouldn’t mistake call from a friend for a spam call (it wouldn’t be an unknown number, for one). Otherwise, yes, it would be weird to replace calls from people that are close to you with emails.
Work calls, though, could be replaced with written communication in 80-90% of the cases, and it would also make it easier to follow-up and continue the discussion across multiple days, if needed
I can see both points. In my experience, people misuse calls more often, since a work-related call would often require a follow-up email anyway, but that’s more anecdotal evidence