How to buy paribus pbx?

Hello there, I'm curious about the process of purchasing Paribus PBX tokens. Could you please walk me through the steps? I'd like to know if I need to set up a specific cryptocurrency wallet, what exchanges support Paribus PBX, and if there are any additional considerations I should be aware of before making a purchase. Additionally, is there a minimum amount required for buying Paribus PBX, and are there any fees associated with the transaction? Thank you in advance for your help.