Do you lack your telephone skills? In north america phone interview is still the "real" thing. Nowadays, employers will use phone interviews when they are so busy (or in some cases just plain lazy) that they only bother to see their top few potential candidates in person. Thus, they use the phone to eliminate those applicants who don't "sound" like the best ones. This is hardly a fair practice for job seekers with thicker accents, very quiet voices, or other strikes against them vocally. But it's a reality you can't ignore and unless you can get past this phone call, you won't get invited in for the next step, which would be to meet the employer face-to-face.