Definitely start small, but the most important thing to remember is that it's going to suck SO BAD sometimes. You're going to feel all those things we tend to feel as stutterers (embarrassment, shame, etc), so the most important thing is to try & stay positive throughout because you'll want to quit. If you keep on a consistent track slowly pushing yourself farther & farther outside your comfort zone, eventually that first thing that stressed you out (answering the phone for example) isn't even remotely stressful anymore because you've done way scarier things & lived to tell the tale. I went from never thinking I would live an even remotely normal or happy life in my teens to now being a Military Training Instructor (drill sergeant) in the Air Force for the past two years. I honestly can't think of anything more impossible than the idea of being a drill sergeant at Basic Military Training, so I don't know if there really is anywhere more outside my comfort zone than where I am now. I'm pretty stoked to go back to my regular career field (MTI is a temporary 3.5 year stint) since I don't think anything can ever stress me out as much as this did. I can comfortably talk in front of a group of 350 people like it's nothing now. Keep in mind I still stutter to varying degrees every day, but it doesn't have any kind of hold over me. I dictate what happens in my life, not my stutter.