Relax. There'd be no need for presumptions if you wrote more clearly than "phone calls is 99% of what I do," unless you're suggesting it's a reasonable presumpt

Relax. There'd be no need for presumptions if you wrote more clearly than "phone calls is 99% of what I do," unless you're suggesting it's a reasonable presumption that you spend 99% of your personal time on the phone, or that "what I do" doesn't colloquially mean "for work."