According to Allears:
Your hotel phone works this way:
Every call will cost you at least 75¢
Calling local, dial a 9 first
Calling long distance, dial an 8 first (and yes, Kissimmee is long distance, sorry, we didn't draw the line)
Calling an 800 number, dial 8 first, then the 1-800 and the rest from there (and yes, this costs 75¢, too)
I remember wanting to make a call from my room with my calling card, and it said right on the phone that I would be charged 75 cents regardless of how I made that call so I opted to go to the lobby. Just a heads up.