I have a lot of meetings and that makes it difficult to answer my workphone. One guy has been calling me every single time I have a meeting and he never answers when I try to call back.

He can contact me through email, ticketing system or Teams, but nope, he keeps calling my phone.

I send him a message through Teams asking if he can tell what the issue is.

He tells me he will just call me via phone.. Why?! Even calling through Teams would be better! Just tell me what the issue is!