Get comfortable. This applies honestly to all areas of navigating life with a stutter. Find a way to become more comfortable with your job. I have found that laying down while making a phone call is much worse than walking around my room. Find strategies like that and make things less awkward for yourself. All in all, one of the main reasons for stuttering is anxiety. Most of us do not stutter when we are alone but as soon as another person is there, it spikes