As a freelancer/hospitality professional my schedule is ever-changing so I don't have one specific set of hours. I'm happy to discuss timelines, payment terms, etc. My only condition is that everything is clearly agreed upon prior to starting any work.
I prefer to communicate via email, however, I have no issue with phone or skype calls. I've been in the service industry long enough that I'm not afraid of these things! I only prefer email due to the fluctuating schedule.