I like the "check with them first" before making assumptions.

This is something I earnestly try to do.

As I try to do to the best of my ability by using inclusive language & avoiding assumptions when I'm at work. I'm on the telephone, so I try to be as inclusive as possible. I don't know what a person on the phone is presenting as their gender, or if they are identifying with a gender. It makes it hard some days.

Thanks for the tips.