I too struggle with speaking on the phone. In your case, one option would be this: Assuming you will be contacted for an interview, allow the to go to voicemail. They almost certainly will leave a message with a number to call. At this point, if you so choose, you can have someone call for you and explain the situation. I would suggest this over including it on your application as it removes the possibility of discrimination prior to an interview. Once they've contacted you for an interview, if they make a 180 degree turn and change their mind, they'd be liable under the ADA as it could very easily be argued that this change is due to your stutter. To be honest, you might even get a reply via email instead of a phone call, and this would be a good time to casually mention your stutter. This way when you go in for the interview the hiring manager (or whoever is conducting you interview) is aware and you won't have the awkward 'so yeah, I stutter' moment in person. In the meantime, you NEED to work on this. I know full well that it's not an easy fix, but trust me, you can improve. I would just start with talking into a phone with no one on the other line. It sounds silly and you might feel silly, but you need to be realistic and take it one step at a time. Then I'd practice conversations with a parent, friend, or SO. Hopefully by the time you go in for the interview you can just say that you struggle on the phone rather than you can't talk on the phone. I hope some of this has helped. Feel free to PM if you have anything else, I know things like this can be tough (trust me, I do), and I'd be happy to support you however I can.