My job is home based too but due to my work schedule, I had to convert to home workouts vs. going to a gym or class. Just like doing your job from home, working out at home take a different type of discipline...different but do-able!
My advice would be to make it part of your schedule, just like you do your job, doctor or hair appointments, etc...Set a time and stick with it. If you cancel, you have to pay. If I cancel, I have to do 30 extra push ups at the end of my workout.
If you can, shut the door. Also keep the phone away from you so you aren't tempted to answer while you're working out. I also recommend the music. It's a great way to "shut out the world" and focus!