Yes, keep calling from and when you get to your resort call from there every a.m. and while you're in the parks. Remember, this is among the top 10, maybe the top 5, most popular restaurants in all WDW and people can book from six months in advance, as many experienced WDW'ers do. It's not like a regular "real world" type of restaurant reservation process.
But people miss or cancel their ADRs all the time, even for the coveted Ohanas, so you really may have a chance. Good luck! It's a great restaurant, the only one of many we tried in 2005 that we made a must-do on our second trip this fall!